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Conserved domains on  [gi|281366635|ref|NP_001163498|]
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argonaute 3, isoform G [Drosophila melanogaster]

Protein Classification

PAZ_piwi_like and Piwi_piwi-like_Euk domain-containing protein( domain architecture ID 10658775)

PAZ_piwi_like and Piwi_piwi-like_Euk domain-containing protein

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
Piwi_piwi-like_Euk cd04658
Piwi_piwi-like_Euk: PIWI domain, Piwi-like subfamily found in eukaryotes. This domain is found ...
412-849 5.31e-180

Piwi_piwi-like_Euk: PIWI domain, Piwi-like subfamily found in eukaryotes. This domain is found in Piwi and closely related proteins, where it is believed to perform a crucial role in germline cells, via RNA silencing. RNA silencing refers to a group of related gene-silencing mechanisms mediated by short RNA molecules, including siRNAs, miRNAs, and heterochromatin-related guide RNAs. The mechanism in Piwi is believed to be similar to that in Argonaute, the central component of the RNA-induced silencing complex (RISC). The PIWI domain is the C-terminal portion of Argonaute and consists of two subdomains, one of which provides the 5' anchoring of the guide RNA and the other, the catalytic site for slicing.


:

Pssm-ID: 240016 [Multi-domain]  Cd Length: 448  Bit Score: 525.68  E-value: 5.31e-180
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 412 KLMREIATFTRVSPNQRQMALNKFYENVSNTPAAQEILNSWGLSLTNNSNKISGRQMDIEQIYFSKISVSAGRSAEFSKH 491
Cdd:cd04658    1 NLMKELAEHTKLNPKERYDTIRQFIQRIQKNPSVQELLKKWGIELDSNPLKIQGRVLPPEQIIMGNVFVYANSNADWKRE 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 492 AVTNEMLKVVHLSKWIIIHLRNYRQAATSLLDNMKQACESLGMNISNPTMISLDHDRIDAYIQALRRNITMNTQMVVCIC 571
Cdd:cd04658   81 IRNQPLYDAVNLNNWVLIYPSRDQREAESFLQTLKQVAGPMGIQISPPKIIKVKDDRIETYIRALKDAFRSDPQLVVIIL 160
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 572 HNRRDDRYAAIKKICCSEIPIPSQVINAKTLQNDLKIRSVVQKIVLQMNCKLGGSLWTVKIP---FKNVMICGIDSYHDP 648
Cdd:cd04658  161 PGNKKDLYDAIKKFCCVECPVPSQVITSRTLKKKKNLRSIASKIALQINAKLGGIPWTVEIPpfiLKNTMIVGIDVYHDT 240
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 649 SNRGNSVAAFVASINSSYSQWYSKAVVQTK-REEIVNGLSASFEIALKMYRKRNGKLPTNIIIYRDGIGDGQLYTCLNYE 727
Cdd:cd04658  241 ITKKKSVVGFVASLNKSITKWFSKYISQVRgQEEIIDSLGKSMKKALKAYKKENKKLPSRIIIYRDGVGDGQLKKVKEYE 320
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 728 IPQF-----EMVCGNRIKISYIVVQKRINTRIFSGSGIHLENPLPGTVVDQHITKSNMYDFFLVSQLVRQGTVTPTHYVV 802
Cdd:cd04658  321 VPQIkkaikQYSENYSPKLAYIVVNKRINTRFFNQGGNNFSNPPPGTVVDSEITKPEWYDFFLVSQSVRQGTVTPTHYNV 400
                        410       420       430       440
                 ....*....|....*....|....*....|....*....|....*..
gi 281366635 803 LRDDCNYGPDIIQKLSYKLCFLYYNWAGTVRIPACCMVSHNyhLIFF 849
Cdd:cd04658  401 LYDTTGLKPDHLQRLTYKLCHLYYNWSGSIRVPAPCQYAHK--LAFL 445
PAZ smart00949
This domain is named PAZ after the proteins Piwi Argonaut and Zwille; This domain is found in ...
291-425 6.07e-48

This domain is named PAZ after the proteins Piwi Argonaut and Zwille; This domain is found in two families of proteins that are involved in post-transcriptional gene silencing. These are the Piwi family and the Dicer family, that includes the Carpel factory protein. The function of the domains is unknown but has been suggested to mediate complex formation between proteins of the Piwi and Dicer families by hetero-dimerisation. The three-dimensional structure of this domain has been solved. The PAZ domain is composed of two subdomains. One subdomain is similar to the OB fold, albeit with a different topology. The OB-fold is well known as a single-stranded nucleic acid binding fold. The second subdomain is composed of a beta-hairpin followed by an alpha-helix. The PAZ domains shows low-affinity nucleic acid binding and appears to interact with the 3' ends of single-stranded regions of RNA in the cleft between the two subdomains. PAZ can bind the characteristic two-base 3' overhangs of siRNAs, indicating that although PAZ may not be a primary nucleic acid binding site in Dicer or RISC, it may contribute to the specific and productive incorporation of siRNAs and miRNAs into the RNAi pathway.


:

Pssm-ID: 198017  Cd Length: 138  Bit Score: 166.69  E-value: 6.07e-48
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635   291 TVLEMLVDLY-QQNVEHYQESARKMLVGNIVLTRYNNRTYKINDICFDQNPTCQFEIKTGCT-SYVEYYKQYHNINIKDV 368
Cdd:smart00949   2 TVLDFMRQLPsQGNRSNFQDRCAKDLKGLIVLTRYNNKTYRIDDIDWNLAPKSTFEKSDGSEiTFVEYYKQKYNITIRDP 81
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 281366635   369 NQPLIYSIKKSRGIPAERENLQFcLIPELCYLTGLRDEVRSDNKLMREIATFTRVSP 425
Cdd:smart00949  82 NQPLLVSRPKRRRNQNGKGEPVL-LPPELCFITGLTDRMRKDFMLMKSIADRTRLSP 137
 
Name Accession Description Interval E-value
Piwi_piwi-like_Euk cd04658
Piwi_piwi-like_Euk: PIWI domain, Piwi-like subfamily found in eukaryotes. This domain is found ...
412-849 5.31e-180

Piwi_piwi-like_Euk: PIWI domain, Piwi-like subfamily found in eukaryotes. This domain is found in Piwi and closely related proteins, where it is believed to perform a crucial role in germline cells, via RNA silencing. RNA silencing refers to a group of related gene-silencing mechanisms mediated by short RNA molecules, including siRNAs, miRNAs, and heterochromatin-related guide RNAs. The mechanism in Piwi is believed to be similar to that in Argonaute, the central component of the RNA-induced silencing complex (RISC). The PIWI domain is the C-terminal portion of Argonaute and consists of two subdomains, one of which provides the 5' anchoring of the guide RNA and the other, the catalytic site for slicing.


Pssm-ID: 240016 [Multi-domain]  Cd Length: 448  Bit Score: 525.68  E-value: 5.31e-180
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 412 KLMREIATFTRVSPNQRQMALNKFYENVSNTPAAQEILNSWGLSLTNNSNKISGRQMDIEQIYFSKISVSAGRSAEFSKH 491
Cdd:cd04658    1 NLMKELAEHTKLNPKERYDTIRQFIQRIQKNPSVQELLKKWGIELDSNPLKIQGRVLPPEQIIMGNVFVYANSNADWKRE 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 492 AVTNEMLKVVHLSKWIIIHLRNYRQAATSLLDNMKQACESLGMNISNPTMISLDHDRIDAYIQALRRNITMNTQMVVCIC 571
Cdd:cd04658   81 IRNQPLYDAVNLNNWVLIYPSRDQREAESFLQTLKQVAGPMGIQISPPKIIKVKDDRIETYIRALKDAFRSDPQLVVIIL 160
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 572 HNRRDDRYAAIKKICCSEIPIPSQVINAKTLQNDLKIRSVVQKIVLQMNCKLGGSLWTVKIP---FKNVMICGIDSYHDP 648
Cdd:cd04658  161 PGNKKDLYDAIKKFCCVECPVPSQVITSRTLKKKKNLRSIASKIALQINAKLGGIPWTVEIPpfiLKNTMIVGIDVYHDT 240
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 649 SNRGNSVAAFVASINSSYSQWYSKAVVQTK-REEIVNGLSASFEIALKMYRKRNGKLPTNIIIYRDGIGDGQLYTCLNYE 727
Cdd:cd04658  241 ITKKKSVVGFVASLNKSITKWFSKYISQVRgQEEIIDSLGKSMKKALKAYKKENKKLPSRIIIYRDGVGDGQLKKVKEYE 320
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 728 IPQF-----EMVCGNRIKISYIVVQKRINTRIFSGSGIHLENPLPGTVVDQHITKSNMYDFFLVSQLVRQGTVTPTHYVV 802
Cdd:cd04658  321 VPQIkkaikQYSENYSPKLAYIVVNKRINTRFFNQGGNNFSNPPPGTVVDSEITKPEWYDFFLVSQSVRQGTVTPTHYNV 400
                        410       420       430       440
                 ....*....|....*....|....*....|....*....|....*..
gi 281366635 803 LRDDCNYGPDIIQKLSYKLCFLYYNWAGTVRIPACCMVSHNyhLIFF 849
Cdd:cd04658  401 LYDTTGLKPDHLQRLTYKLCHLYYNWSGSIRVPAPCQYAHK--LAFL 445
Piwi smart00950
This domain is found in the protein Piwi and its relatives; The function of this domain is the ...
567-844 3.96e-95

This domain is found in the protein Piwi and its relatives; The function of this domain is the dsRNA guided hydrolysis of ssRNA. Determination of the crystal structure of Argonaute reveals that PIWI is an RNase H domain, and identifies Argonaute as Slicer, the enzyme that cleaves mRNA in the RNAi RISC complex.. In addition, Mg+2 dependence and production of 3'-OH and 5' phosphate products are shared characteristics of RNaseH and RISC. The PIWI domain core has a tertiary structure belonging to the RNase H family of enzymes. RNase H fold proteins all have a five-stranded mixed beta-sheet surrounded by helices. By analogy to RNase H enzymes which cleave single-stranded RNA guided by the DNA strand in an RNA/DNA hybrid, the PIWI domain can be inferred to cleave single-stranded RNA, for example mRNA, guided by double stranded siRNA.


Pssm-ID: 214930  Cd Length: 301  Bit Score: 300.41  E-value: 3.96e-95
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635   567 VVCICHNRRDDRYAAIKKICCSEIPIPSQVINAKTL---QNDLKIRSVVQKIVLQMNCKLGGSLWTVK---IPFKNVMIC 640
Cdd:smart00950   3 VVILPGEKKTDLYHEIKKYLETKLGVPTQCVQAKTLdkvSKRRKLKQYLTNVALKINAKLGGINWVLDvppIPLKPTLII 82
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635   641 GIDSYHDPSNRGNSVAAFVASINSSySQWYSKAVVQ-TKREEIVNGLSASFEIALKMYRKRNGK-LPTNIIIYRDGIGDG 718
Cdd:smart00950  83 GIDVSHPSAGKGGSVAPSVAAFVAS-GNYLSGNFYQaFVREQGSRQLKEILREALKKYYKSNRKrLPDRIVVYRDGVSEG 161
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635   719 QLYTCLNYEIPQFEMVCGN-----RIKISYIVVQKRINTRIFSGSGIHLENPLPGTVVDQHITKSNMYDFFLVSQLVRQG 793
Cdd:smart00950 162 QFKQVLEYEVKAIKKACKElgpdyKPKLTVIVVQKRHHTRFFPEDGNGRVNVPPGTVVDSVITSPEWYDFYLVSHAGLQG 241
                          250       260       270       280       290
                   ....*....|....*....|....*....|....*....|....*....|.
gi 281366635   794 TVTPTHYVVLRDDCNYGPDIIQKLSYKLCFLYYNWAGTVRIPACCMVSHNY 844
Cdd:smart00950 242 TARPTHYTVLYDEGNLDPDELQRLTYKLCHLYYRSTRPVSLPAPVYYAHLL 292
Piwi pfam02171
Piwi domain; This domain is found in the protein Piwi and its relatives. The function of this ...
567-844 1.70e-78

Piwi domain; This domain is found in the protein Piwi and its relatives. The function of this domain is the dsRNA guided hydrolysis of ssRNA. Determination of the crystal structure of Argonaute reveals that PIWI is an RNase H domain, and identifies Argonaute as Slicer, the enzyme that cleaves mRNA in the RNAi RISC complex. In addition, Mg+2 dependence and production of 3'-OH and 5' phosphate products are shared characteriztics of RNaseH and RISC. The PIWI domain core has a tertiary structure belonging to the RNase H family of enzymes. RNase H fold proteins all have a five-stranded mixed beta-sheet surrounded by helices. By analogy to RNase H enzymes which cleave single-stranded RNA guided by the DNA strand in an RNA/DNA hybrid, the PIWI domain can be inferred to cleave single-stranded RNA, for example mRNA, guided by double stranded siRNA.


Pssm-ID: 396649  Cd Length: 296  Bit Score: 256.11  E-value: 1.70e-78
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635  567 VVCICHNRRDDRYAAIKKICCSEIPIPSQVINAKTLQNDLKiRSVVQKIVLQMNCKLGGS-LWTVKIPFKNVMICGIDSY 645
Cdd:pfam02171   2 ILVILPEKNKDLYHSIKKYLETDLGIPSQCILSKTILKRTL-KQTLTNVLLKINVKLGGInYWIVEIKPKVDVIIGFDIS 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635  646 HDPSNRGN--SVAAFVASINSSYSQWYSKAVVQTKREEIVNGLSASFEIALKMYRKRNGKLPTNIIIYRDGIGDGQLYTC 723
Cdd:pfam02171  81 HGTAGTDDnpSVAAVVASFDKGNSRYFGTVRTQASGQELLEPLKDIIKELLRSFQKSSRKKPERIIVYRDGVSEGQFPQV 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635  724 LNYEIPQFEMVC-----GNRIKISYIVVQKRINTRIF-SGSGIHLENPLPGTVVDQHITKSNMYDFFLVSQLVRQGTVTP 797
Cdd:pfam02171 161 LNYEVNQIKEACkslgpGYNPKLTVIVVQKRHHTRFFaNDKPDGDQNPPPGTVVDDVITLPEYYDFYLCSHAGLQGTVKP 240
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*..
gi 281366635  798 THYVVLRDDCNYGPDIIQKLSYKLCFLYYNWAGTVRIPACCMVSHNY 844
Cdd:pfam02171 241 THYTVLYDEIGLSADELQNLTYKLCHMYYRSTRPISIPAPVYYAHLL 287
PAZ smart00949
This domain is named PAZ after the proteins Piwi Argonaut and Zwille; This domain is found in ...
291-425 6.07e-48

This domain is named PAZ after the proteins Piwi Argonaut and Zwille; This domain is found in two families of proteins that are involved in post-transcriptional gene silencing. These are the Piwi family and the Dicer family, that includes the Carpel factory protein. The function of the domains is unknown but has been suggested to mediate complex formation between proteins of the Piwi and Dicer families by hetero-dimerisation. The three-dimensional structure of this domain has been solved. The PAZ domain is composed of two subdomains. One subdomain is similar to the OB fold, albeit with a different topology. The OB-fold is well known as a single-stranded nucleic acid binding fold. The second subdomain is composed of a beta-hairpin followed by an alpha-helix. The PAZ domains shows low-affinity nucleic acid binding and appears to interact with the 3' ends of single-stranded regions of RNA in the cleft between the two subdomains. PAZ can bind the characteristic two-base 3' overhangs of siRNAs, indicating that although PAZ may not be a primary nucleic acid binding site in Dicer or RISC, it may contribute to the specific and productive incorporation of siRNAs and miRNAs into the RNAi pathway.


Pssm-ID: 198017  Cd Length: 138  Bit Score: 166.69  E-value: 6.07e-48
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635   291 TVLEMLVDLY-QQNVEHYQESARKMLVGNIVLTRYNNRTYKINDICFDQNPTCQFEIKTGCT-SYVEYYKQYHNINIKDV 368
Cdd:smart00949   2 TVLDFMRQLPsQGNRSNFQDRCAKDLKGLIVLTRYNNKTYRIDDIDWNLAPKSTFEKSDGSEiTFVEYYKQKYNITIRDP 81
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 281366635   369 NQPLIYSIKKSRGIPAERENLQFcLIPELCYLTGLRDEVRSDNKLMREIATFTRVSP 425
Cdd:smart00949  82 NQPLLVSRPKRRRNQNGKGEPVL-LPPELCFITGLTDRMRKDFMLMKSIADRTRLSP 137
PAZ_piwi_like cd02845
PAZ domain, Piwi_like subfamily. In multi-cellular organisms, the Piwi protein appears to be ...
289-403 5.10e-47

PAZ domain, Piwi_like subfamily. In multi-cellular organisms, the Piwi protein appears to be essential for the maintenance of germline stem cells. In the Drosophila male germline, Piwi was shown to be involved in the silencing of retrotransposons in the male gametes. The Piwi proteins share their domain architecture with other members of the argonaute family. The PAZ domain has been named after the proteins Piwi, Argonaut, and Zwille. PAZ is found in two families of proteins that are essential components of RNA-mediated gene-silencing pathways, including RNA interference, the Piwi and Dicer families. PAZ functions as a nucleic acid binding domain, with a strong preference for single-stranded nucleic acids (RNA or DNA) or RNA duplexes with single-stranded 3' overhangs. It has been suggested that the PAZ domain provides a unique mode for the recognition of the two 3'-terminal nucleotides in single-stranded nucleic acids and buries the 3' OH group, and that it might recognize characteristic 3' overhangs in siRNAs within RISC (RNA-induced silencing) and other complexes.


Pssm-ID: 239211  Cd Length: 117  Bit Score: 163.20  E-value: 5.10e-47
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 289 QKTVLEMLVDLYQQNV-EHYQESARKMLVGNIVLTRYNNRTYKINDICFDQNPTCQFEIKTG-CTSYVEYYKQYHNINIK 366
Cdd:cd02845    1 STTVLDRMHKLYRQETdERFREECEKELIGSIVLTRYNNKTYRIDDIDFDKTPLSTFKKSDGtEITFVEYYKKQYNIEIT 80
                         90       100       110
                 ....*....|....*....|....*....|....*..
gi 281366635 367 DVNQPLIYSIKKSRGiPAERENLQFCLIPELCYLTGL 403
Cdd:cd02845   81 DLNQPLLVSRPKRRD-PRGGEKEPIYLIPELCFLTGL 116
PLN03202 PLN03202
protein argonaute; Provisional
273-825 1.21e-34

protein argonaute; Provisional


Pssm-ID: 215631 [Multi-domain]  Cd Length: 900  Bit Score: 142.55  E-value: 1.21e-34
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 273 KGGLMLCCDVSHRILCQK-TVLEMLvdLYQQNVEH-YQ---ESARKMLVGNIVLTRYNNRTYKINDI----CFDQnpTCQ 343
Cdd:PLN03202 250 QGGLSLNIDVSTTMIVQPgPVVDFL--IANQNVRDpFQidwSKAKRMLKNLRVKVSPSNQEYKITGLsekpCKEQ--TFS 325
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 344 FEIKTG---------CTSYvEYYKQYHNINIK--------DVNQPliysiKKSRGIPAErenlqfclipeLCYLTGLRDE 406
Cdd:PLN03202 326 LKQRNGngnevetveITVY-DYFVKHRGIELRysgdlpciNVGKP-----KRPTYFPIE-----------LCSLVSLQRY 388
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 407 VRSDNKLMR-EIATFTRVSPNQRQMALNKFYEnvSNTPAAQEILNSWGLSLTNNSNKISGRQMdieqiyfSKISVSAGRS 485
Cdd:PLN03202 389 TKALSTLQRsSLVEKSRQKPQERMKVLTDALK--SSNYDADPMLRSCGISISSQFTQVEGRVL-------PAPKLKVGNG 459
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 486 AEFS----KHAVTNEML-KVVHLSKWIIIHLrNYRQAATSLLDNMKQACESLGMNISNP-TMISLDHD--------RIDA 551
Cdd:PLN03202 460 EDFFprngRWNFNNKKLvEPTKIERWAVVNF-SARCDIRHLVRDLIKCGEMKGINIEPPfDVFEENPQfrrapppvRVEK 538
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 552 YIQALRRNITMNTQMVVCICHNRRD-DRYAAIKKICCSEIPIPSQVInAKTLQNDLKIRSVVQKIvlqmNCKLGG--SLW 628
Cdd:PLN03202 539 MFEQIQSKLPGPPQFLLCILPERKNsDIYGPWKKKNLSEFGIVTQCI-APTRVNDQYLTNVLLKI----NAKLGGlnSLL 613
                        410       420       430       440       450       460       470       480
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 629 TVK----IPFKN---VMICGIDSYHDPSNRGN--SVAAFVASinssySQW-----YSKAV-VQTKREEIVNGLsasF--- 690
Cdd:PLN03202 614 AIEhspsIPLVSkvpTIILGMDVSHGSPGQSDvpSIAAVVSS-----RQWplisrYRASVrTQSPKVEMIDSL---Fkpv 685
                        490       500       510       520       530       540       550       560
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 691 ----------EIALKMYRKRNGKLPTNIIIYRDGIGDGQLYTCLNYEIPQFEMVC-----GNRIKISYIVVQKRINTRIF 755
Cdd:PLN03202 686 gdkdddgiirELLLDFYTSSGKRKPEQIIIFRDGVSESQFNQVLNIELDQIIEACkfldeSWSPKFTVIVAQKNHHTKFF 765
                        570       580       590       600       610       620       630
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 756 SGSGIhlENPLPGTVVDQHITKSNMYDFFLVSQLVRQGTVTPTHYVVLRDDCNYGPDIIQKLSYKLCFLY 825
Cdd:PLN03202 766 QAGSP--DNVPPGTVVDNKICHPRNNDFYMCAHAGMIGTTRPTHYHVLLDEIGFSADDLQELVHSLSYVY 833
PAZ pfam02170
PAZ domain; This domain is named PAZ after the proteins Piwi Argonaut and Zwille. This domain ...
293-424 1.99e-33

PAZ domain; This domain is named PAZ after the proteins Piwi Argonaut and Zwille. This domain is found in two families of proteins that are involved in post-transcriptional gene silencing. These are the Piwi family and the Dicer family, that includes the Carpel factory protein. The function of the domains is unknown but has been suggested to mediate complex formation between proteins of the Piwi and Dicer families by hetero-dimerization. The three-dimensional structure of this domain has been solved. The PAZ domain is composed of two subdomains. One subdomain is similar to the OB fold, albeit with a different topology. The OB-fold is well known as a single-stranded nucleic acid binding fold. The second subdomain is composed of a beta-hairpin followed by an alpha-helix. The PAZ domains shows low-affinity nucleic acid binding and appears to interact with the 3' ends of single-stranded regions of RNA in the cleft between the two subdomains. PAZ can bind the characteriztic two-base 3' overhangs of siRNAs, indicating that although PAZ may not be a primary nucleic acid binding site in Dicer or RISC, it may contribute to the specific and productive incorporation of siRNAs and miRNAs into the RNAi pathway.


Pssm-ID: 460472  Cd Length: 123  Bit Score: 124.61  E-value: 1.99e-33
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635  293 LEMLVDLYQQNVEH-YQESARKMLVGNIVLTRYNN-RTYKINDICFDQNPTCQFEIKTG-CTSYVEYYKQYHNINIKDVN 369
Cdd:pfam02170   1 LDFLKRLQQQKDRRdFRKEAKKALKGLKVYTTYNNpRTYRIDGITFDPTPESTFPLKDGkEITVVDYFKKKYNIDLKYPD 80
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 281366635  370 QPLIYSIKKSRGIpaerenlqfCLIPELCYLTglrDEVRSDNKLMREIATFTRVS 424
Cdd:pfam02170  81 QPLLLVGKKRPKV---------YLPPELCNLV---DGQRYTKKLMPSIAQRTRLL 123
PIWI COG1431
PIWI domain, catalyzes dsRNA-guided hydrolysis of ssRNA, involved in RNA silencing, RNA ...
360-771 7.09e-08

PIWI domain, catalyzes dsRNA-guided hydrolysis of ssRNA, involved in RNA silencing, RNA metabolism and antiviral defense [Translation, ribosomal structure and biogenesis, Defense mechanisms];


Pssm-ID: 441040 [Multi-domain]  Cd Length: 616  Bit Score: 56.35  E-value: 7.09e-08
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 360 YHNINIKDVNQPLIYSIKKS--RGIPAERENLQFCLIPELCYLTGLRDEVRSDNKLMREIATFTRVSPNQRQMALNKFYE 437
Cdd:COG1431   99 YDKRRIALAKSGEEEVSRLRdyASILLLSLTFDEDRARGEKFFRVLTNASTKKPVGDDLHPTARQLKVEKRLLADAKVDE 178
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 438 -NVSNTPAAQEILNSWGLSLTNNSNKISGRQMDIEQIY-FSKISVSAGR--------SAEFSKHAVTNEMLKVVHLSKWI 507
Cdd:COG1431  179 lPARLLLVYQSISLQNIISVGGSRLLAQRLEQVSLGKVrVRLIKLAIRRkvrdpkelRDSAQYLAKEKDRELFELDGRSR 258
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 508 IIHLRNYRQAATSLLDNMKQACESLGMNISNPTMISLDHDRiDAYIQALRRNITMNTQ--MVVCICHNRRDDR------- 578
Cdd:COG1431  259 LKSFETEALKEEFLRKLSKKLKSLSGIKLNIITKKSGPESK-EALSEALKQLANEQGPdlVLVFIPQSDKADDdeesfdl 337
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 579 YAAIKKICCSEiPIPSQVINAKTLQNDLkIRSVVQKIVLQMNCKLGGSLWTVK-IPFKNVMICGIDSYHDPSNRGNSVA- 656
Cdd:COG1431  338 YYEIKALLLRR-GIPSQFIREDTLKNSN-LKYILNNVLLGILAKLGGIPWVLNePPGPADLFIGIDVSRIKAGTQRAGGs 415
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 657 AFVASINSSYSQWYSKAVVQtkREEIVNG--LSASFEIALKMYRKRNGKLPTNIIIYRDG-IGDGQLYTCLNYEipqfEM 733
Cdd:COG1431  416 AVVFDSDGELLRYKLSKALQ--AGETIPArdLEDLLKESVDKFEKSAGLKPKRVLIHRDGrFCDEEVEGLKEFL----EA 489
                        410       420       430
                 ....*....|....*....|....*....|....*...
gi 281366635 734 VcgnRIKISYIVVQKRINTRIFSGSGIHLENPLPGTVV 771
Cdd:COG1431  490 F---DIKFDLVEVRKSGSPRLYNNENKGFDAPERGLAV 524
 
Name Accession Description Interval E-value
Piwi_piwi-like_Euk cd04658
Piwi_piwi-like_Euk: PIWI domain, Piwi-like subfamily found in eukaryotes. This domain is found ...
412-849 5.31e-180

Piwi_piwi-like_Euk: PIWI domain, Piwi-like subfamily found in eukaryotes. This domain is found in Piwi and closely related proteins, where it is believed to perform a crucial role in germline cells, via RNA silencing. RNA silencing refers to a group of related gene-silencing mechanisms mediated by short RNA molecules, including siRNAs, miRNAs, and heterochromatin-related guide RNAs. The mechanism in Piwi is believed to be similar to that in Argonaute, the central component of the RNA-induced silencing complex (RISC). The PIWI domain is the C-terminal portion of Argonaute and consists of two subdomains, one of which provides the 5' anchoring of the guide RNA and the other, the catalytic site for slicing.


Pssm-ID: 240016 [Multi-domain]  Cd Length: 448  Bit Score: 525.68  E-value: 5.31e-180
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 412 KLMREIATFTRVSPNQRQMALNKFYENVSNTPAAQEILNSWGLSLTNNSNKISGRQMDIEQIYFSKISVSAGRSAEFSKH 491
Cdd:cd04658    1 NLMKELAEHTKLNPKERYDTIRQFIQRIQKNPSVQELLKKWGIELDSNPLKIQGRVLPPEQIIMGNVFVYANSNADWKRE 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 492 AVTNEMLKVVHLSKWIIIHLRNYRQAATSLLDNMKQACESLGMNISNPTMISLDHDRIDAYIQALRRNITMNTQMVVCIC 571
Cdd:cd04658   81 IRNQPLYDAVNLNNWVLIYPSRDQREAESFLQTLKQVAGPMGIQISPPKIIKVKDDRIETYIRALKDAFRSDPQLVVIIL 160
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 572 HNRRDDRYAAIKKICCSEIPIPSQVINAKTLQNDLKIRSVVQKIVLQMNCKLGGSLWTVKIP---FKNVMICGIDSYHDP 648
Cdd:cd04658  161 PGNKKDLYDAIKKFCCVECPVPSQVITSRTLKKKKNLRSIASKIALQINAKLGGIPWTVEIPpfiLKNTMIVGIDVYHDT 240
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 649 SNRGNSVAAFVASINSSYSQWYSKAVVQTK-REEIVNGLSASFEIALKMYRKRNGKLPTNIIIYRDGIGDGQLYTCLNYE 727
Cdd:cd04658  241 ITKKKSVVGFVASLNKSITKWFSKYISQVRgQEEIIDSLGKSMKKALKAYKKENKKLPSRIIIYRDGVGDGQLKKVKEYE 320
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 728 IPQF-----EMVCGNRIKISYIVVQKRINTRIFSGSGIHLENPLPGTVVDQHITKSNMYDFFLVSQLVRQGTVTPTHYVV 802
Cdd:cd04658  321 VPQIkkaikQYSENYSPKLAYIVVNKRINTRFFNQGGNNFSNPPPGTVVDSEITKPEWYDFFLVSQSVRQGTVTPTHYNV 400
                        410       420       430       440
                 ....*....|....*....|....*....|....*....|....*..
gi 281366635 803 LRDDCNYGPDIIQKLSYKLCFLYYNWAGTVRIPACCMVSHNyhLIFF 849
Cdd:cd04658  401 LYDTTGLKPDHLQRLTYKLCHLYYNWSGSIRVPAPCQYAHK--LAFL 445
Piwi smart00950
This domain is found in the protein Piwi and its relatives; The function of this domain is the ...
567-844 3.96e-95

This domain is found in the protein Piwi and its relatives; The function of this domain is the dsRNA guided hydrolysis of ssRNA. Determination of the crystal structure of Argonaute reveals that PIWI is an RNase H domain, and identifies Argonaute as Slicer, the enzyme that cleaves mRNA in the RNAi RISC complex.. In addition, Mg+2 dependence and production of 3'-OH and 5' phosphate products are shared characteristics of RNaseH and RISC. The PIWI domain core has a tertiary structure belonging to the RNase H family of enzymes. RNase H fold proteins all have a five-stranded mixed beta-sheet surrounded by helices. By analogy to RNase H enzymes which cleave single-stranded RNA guided by the DNA strand in an RNA/DNA hybrid, the PIWI domain can be inferred to cleave single-stranded RNA, for example mRNA, guided by double stranded siRNA.


Pssm-ID: 214930  Cd Length: 301  Bit Score: 300.41  E-value: 3.96e-95
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635   567 VVCICHNRRDDRYAAIKKICCSEIPIPSQVINAKTL---QNDLKIRSVVQKIVLQMNCKLGGSLWTVK---IPFKNVMIC 640
Cdd:smart00950   3 VVILPGEKKTDLYHEIKKYLETKLGVPTQCVQAKTLdkvSKRRKLKQYLTNVALKINAKLGGINWVLDvppIPLKPTLII 82
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635   641 GIDSYHDPSNRGNSVAAFVASINSSySQWYSKAVVQ-TKREEIVNGLSASFEIALKMYRKRNGK-LPTNIIIYRDGIGDG 718
Cdd:smart00950  83 GIDVSHPSAGKGGSVAPSVAAFVAS-GNYLSGNFYQaFVREQGSRQLKEILREALKKYYKSNRKrLPDRIVVYRDGVSEG 161
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635   719 QLYTCLNYEIPQFEMVCGN-----RIKISYIVVQKRINTRIFSGSGIHLENPLPGTVVDQHITKSNMYDFFLVSQLVRQG 793
Cdd:smart00950 162 QFKQVLEYEVKAIKKACKElgpdyKPKLTVIVVQKRHHTRFFPEDGNGRVNVPPGTVVDSVITSPEWYDFYLVSHAGLQG 241
                          250       260       270       280       290
                   ....*....|....*....|....*....|....*....|....*....|.
gi 281366635   794 TVTPTHYVVLRDDCNYGPDIIQKLSYKLCFLYYNWAGTVRIPACCMVSHNY 844
Cdd:smart00950 242 TARPTHYTVLYDEGNLDPDELQRLTYKLCHLYYRSTRPVSLPAPVYYAHLL 292
Piwi pfam02171
Piwi domain; This domain is found in the protein Piwi and its relatives. The function of this ...
567-844 1.70e-78

Piwi domain; This domain is found in the protein Piwi and its relatives. The function of this domain is the dsRNA guided hydrolysis of ssRNA. Determination of the crystal structure of Argonaute reveals that PIWI is an RNase H domain, and identifies Argonaute as Slicer, the enzyme that cleaves mRNA in the RNAi RISC complex. In addition, Mg+2 dependence and production of 3'-OH and 5' phosphate products are shared characteriztics of RNaseH and RISC. The PIWI domain core has a tertiary structure belonging to the RNase H family of enzymes. RNase H fold proteins all have a five-stranded mixed beta-sheet surrounded by helices. By analogy to RNase H enzymes which cleave single-stranded RNA guided by the DNA strand in an RNA/DNA hybrid, the PIWI domain can be inferred to cleave single-stranded RNA, for example mRNA, guided by double stranded siRNA.


Pssm-ID: 396649  Cd Length: 296  Bit Score: 256.11  E-value: 1.70e-78
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635  567 VVCICHNRRDDRYAAIKKICCSEIPIPSQVINAKTLQNDLKiRSVVQKIVLQMNCKLGGS-LWTVKIPFKNVMICGIDSY 645
Cdd:pfam02171   2 ILVILPEKNKDLYHSIKKYLETDLGIPSQCILSKTILKRTL-KQTLTNVLLKINVKLGGInYWIVEIKPKVDVIIGFDIS 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635  646 HDPSNRGN--SVAAFVASINSSYSQWYSKAVVQTKREEIVNGLSASFEIALKMYRKRNGKLPTNIIIYRDGIGDGQLYTC 723
Cdd:pfam02171  81 HGTAGTDDnpSVAAVVASFDKGNSRYFGTVRTQASGQELLEPLKDIIKELLRSFQKSSRKKPERIIVYRDGVSEGQFPQV 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635  724 LNYEIPQFEMVC-----GNRIKISYIVVQKRINTRIF-SGSGIHLENPLPGTVVDQHITKSNMYDFFLVSQLVRQGTVTP 797
Cdd:pfam02171 161 LNYEVNQIKEACkslgpGYNPKLTVIVVQKRHHTRFFaNDKPDGDQNPPPGTVVDDVITLPEYYDFYLCSHAGLQGTVKP 240
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*..
gi 281366635  798 THYVVLRDDCNYGPDIIQKLSYKLCFLYYNWAGTVRIPACCMVSHNY 844
Cdd:pfam02171 241 THYTVLYDEIGLSADELQNLTYKLCHMYYRSTRPISIPAPVYYAHLL 287
Piwi_ago-like cd04657
Piwi_ago-like: PIWI domain, Argonaute-like subfamily. Argonaute is the central component of ...
447-836 9.52e-74

Piwi_ago-like: PIWI domain, Argonaute-like subfamily. Argonaute is the central component of the RNA-induced silencing complex (RISC) and related complexes. The PIWI domain is the C-terminal portion of Argonaute and consists of two subdomains, one of which provides the 5' anchoring of the guide RNA and the other, the catalytic site for slicing.


Pssm-ID: 240015 [Multi-domain]  Cd Length: 426  Bit Score: 247.91  E-value: 9.52e-74
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 447 EILNSWGLSLTNNSNKISGRQMDIEQIYFSKISVSAGRsaefsKHAVTNEMLKVVH----LSKWIII------HLRNYRQ 516
Cdd:cd04657    1 PYLKEFGISVSKEMITVPGRVLPPPKLKYGDSSKTVPP-----RNGSWNLRGKKFLeggpIRSWAVLnfagprRSREERA 75
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 517 AATSLLDNMKQACESLGMNIsnPTMISLDHDRIDAYIQALRRNITMNTQMVVCICHNRRDDRYAAIKKICCSEIPIPSQV 596
Cdd:cd04657   76 DLRNFVDQLVKTVIGAGINI--TTAIASVEGRVEELFAKLKQAKGEGPQLVLVILPKKDSDIYGRIKRLADTELGIHTQC 153
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 597 INAKTLQ---NDLKIRSVVQKIvlqmNCKLGGSLWTVKIPF------KNVMICGIDSYHdPSNRGN----SVAAFVASIN 663
Cdd:cd04657  154 VLAKKVTkkgNPQYFANVALKI----NLKLGGINHSLEPDIrplltkEPTMVLGADVTH-PSPGDPagapSIAAVVASVD 228
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 664 SSYSQWYSKAVVQTKREEIVNGLSASFEIALKMYRKRNGKLPTNIIIYRDGIGDGQLYTCLNYEIPQFEMVC-----GNR 738
Cdd:cd04657  229 WHLAQYPASVRLQSHRQEIIDDLESMVRELLRAFKKATGKLPERIIYYRDGVSEGQFAQVLNEELPAIRKACaklypGYK 308
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 739 IKISYIVVQKRINTRIF--------SGSGihleNPLPGTVVDQHITKSNMYDFFLVSQLVRQGTVTPTHYVVLRDDCNYG 810
Cdd:cd04657  309 PKITFIVVQKRHHTRFFptdeddadGKNG----NVPPGTVVDRGITHPREFDFYLCSHAGIQGTARPTHYHVLWDEIGFT 384
                        410       420
                 ....*....|....*....|....*.
gi 281366635 811 PDIIQKLSYKLCFLYYNWAGTVRIPA 836
Cdd:cd04657  385 ADELQTLTYNLCYTYARCTRSVSIPP 410
Piwi-like cd02826
Piwi-like: PIWI domain. Domain found in proteins involved in RNA silencing. RNA silencing ...
462-844 1.99e-69

Piwi-like: PIWI domain. Domain found in proteins involved in RNA silencing. RNA silencing refers to a group of related gene-silencing mechanisms mediated by short RNA molecules, including siRNAs, miRNAs, and heterochromatin-related guide RNAs. The central component of the RNA-induced silencing complex (RISC) and related complexes is Argonaute. The PIWI domain is the C-terminal portion of Argonaute and consists of two subdomains, one of which provides the 5' anchoring of the guide RNA and the other, the catalytic site for slicing. This domain is also found in closely related proteins, including the Piwi subfamily, where it is believed to perform a crucial role in germline cells, via a similar mechanism.


Pssm-ID: 239208 [Multi-domain]  Cd Length: 393  Bit Score: 235.36  E-value: 1.99e-69
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 462 KISGRQMDIEQIYFSKisvsagrsaEFSKHAVTNEMLKVVHLsKWIIIHLRNYR-QAATSLLDnmkQACESLGM---NIS 537
Cdd:cd02826    4 ILKGRVLPKPQILFKN---------KFLRNIGPFEKPAKITN-PVAVIAFRNEEvDDLVKRLA---DACRQLGMkikEIP 70
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 538 NPTMISLDHDRIDAYIQALRRNITMNTQMVVCICHNRRDDRYAAIKKICCSEiPIPSQVINAKTLQNDLKIRSVVQKIVL 617
Cdd:cd02826   71 IVSWIEDLNNSFKDLKSVFKNAIKAGVQLVIFILKEKKPPLHDEIKRLEAKS-DIPSQVIQLKTAKKMRRLKQTLDNLLR 149
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 618 QMNCKLGGSLWTVKIP---FKNVMICGIDSYHDPSNRGNSVAAFVA-SINSSYSQWYSKAV-VQTKREEIVNGLSASFEI 692
Cdd:cd02826  150 KVNSKLGGINYILDSPvklFKSDIFIGFDVSHPDRRTVNGGPSAVGfAANLSNHTFLGGFLyVQPSREVKLQDLGEVIKK 229
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 693 ALKMYRKRNGK-LPTNIIIYRDGIGDGQLYTCLNYEIPQ----FEMVCGNRIKISYIVVQKRINTRIF-SGSGIHLENPL 766
Cdd:cd02826  230 CLDGFKKSTGEgLPEKIVIYRDGVSEGEFKRVKEEVEEIikeaCEIEESYRPKLVIIVVQKRHNTRFFpNEKNGGVQNPE 309
                        330       340       350       360       370       380       390
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 281366635 767 PGTVVDQHITKSNMYDFFLVSQLVRQGTVTPTHYVVLRDDCNYGPDIIQKLSYKLCFLYYNWAGTVRIPACCMVSHNY 844
Cdd:cd02826  310 PGTVVDHTITSPGLSEFYLASHVARQGTVKPTKYTVVFNDKNWSLNELEILTYILCLTHQNVYSPISLPAPLYYAHKL 387
PAZ smart00949
This domain is named PAZ after the proteins Piwi Argonaut and Zwille; This domain is found in ...
291-425 6.07e-48

This domain is named PAZ after the proteins Piwi Argonaut and Zwille; This domain is found in two families of proteins that are involved in post-transcriptional gene silencing. These are the Piwi family and the Dicer family, that includes the Carpel factory protein. The function of the domains is unknown but has been suggested to mediate complex formation between proteins of the Piwi and Dicer families by hetero-dimerisation. The three-dimensional structure of this domain has been solved. The PAZ domain is composed of two subdomains. One subdomain is similar to the OB fold, albeit with a different topology. The OB-fold is well known as a single-stranded nucleic acid binding fold. The second subdomain is composed of a beta-hairpin followed by an alpha-helix. The PAZ domains shows low-affinity nucleic acid binding and appears to interact with the 3' ends of single-stranded regions of RNA in the cleft between the two subdomains. PAZ can bind the characteristic two-base 3' overhangs of siRNAs, indicating that although PAZ may not be a primary nucleic acid binding site in Dicer or RISC, it may contribute to the specific and productive incorporation of siRNAs and miRNAs into the RNAi pathway.


Pssm-ID: 198017  Cd Length: 138  Bit Score: 166.69  E-value: 6.07e-48
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635   291 TVLEMLVDLY-QQNVEHYQESARKMLVGNIVLTRYNNRTYKINDICFDQNPTCQFEIKTGCT-SYVEYYKQYHNINIKDV 368
Cdd:smart00949   2 TVLDFMRQLPsQGNRSNFQDRCAKDLKGLIVLTRYNNKTYRIDDIDWNLAPKSTFEKSDGSEiTFVEYYKQKYNITIRDP 81
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 281366635   369 NQPLIYSIKKSRGIPAERENLQFcLIPELCYLTGLRDEVRSDNKLMREIATFTRVSP 425
Cdd:smart00949  82 NQPLLVSRPKRRRNQNGKGEPVL-LPPELCFITGLTDRMRKDFMLMKSIADRTRLSP 137
PAZ_piwi_like cd02845
PAZ domain, Piwi_like subfamily. In multi-cellular organisms, the Piwi protein appears to be ...
289-403 5.10e-47

PAZ domain, Piwi_like subfamily. In multi-cellular organisms, the Piwi protein appears to be essential for the maintenance of germline stem cells. In the Drosophila male germline, Piwi was shown to be involved in the silencing of retrotransposons in the male gametes. The Piwi proteins share their domain architecture with other members of the argonaute family. The PAZ domain has been named after the proteins Piwi, Argonaut, and Zwille. PAZ is found in two families of proteins that are essential components of RNA-mediated gene-silencing pathways, including RNA interference, the Piwi and Dicer families. PAZ functions as a nucleic acid binding domain, with a strong preference for single-stranded nucleic acids (RNA or DNA) or RNA duplexes with single-stranded 3' overhangs. It has been suggested that the PAZ domain provides a unique mode for the recognition of the two 3'-terminal nucleotides in single-stranded nucleic acids and buries the 3' OH group, and that it might recognize characteristic 3' overhangs in siRNAs within RISC (RNA-induced silencing) and other complexes.


Pssm-ID: 239211  Cd Length: 117  Bit Score: 163.20  E-value: 5.10e-47
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 289 QKTVLEMLVDLYQQNV-EHYQESARKMLVGNIVLTRYNNRTYKINDICFDQNPTCQFEIKTG-CTSYVEYYKQYHNINIK 366
Cdd:cd02845    1 STTVLDRMHKLYRQETdERFREECEKELIGSIVLTRYNNKTYRIDDIDFDKTPLSTFKKSDGtEITFVEYYKKQYNIEIT 80
                         90       100       110
                 ....*....|....*....|....*....|....*..
gi 281366635 367 DVNQPLIYSIKKSRGiPAERENLQFCLIPELCYLTGL 403
Cdd:cd02845   81 DLNQPLLVSRPKRRD-PRGGEKEPIYLIPELCFLTGL 116
PLN03202 PLN03202
protein argonaute; Provisional
273-825 1.21e-34

protein argonaute; Provisional


Pssm-ID: 215631 [Multi-domain]  Cd Length: 900  Bit Score: 142.55  E-value: 1.21e-34
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 273 KGGLMLCCDVSHRILCQK-TVLEMLvdLYQQNVEH-YQ---ESARKMLVGNIVLTRYNNRTYKINDI----CFDQnpTCQ 343
Cdd:PLN03202 250 QGGLSLNIDVSTTMIVQPgPVVDFL--IANQNVRDpFQidwSKAKRMLKNLRVKVSPSNQEYKITGLsekpCKEQ--TFS 325
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 344 FEIKTG---------CTSYvEYYKQYHNINIK--------DVNQPliysiKKSRGIPAErenlqfclipeLCYLTGLRDE 406
Cdd:PLN03202 326 LKQRNGngnevetveITVY-DYFVKHRGIELRysgdlpciNVGKP-----KRPTYFPIE-----------LCSLVSLQRY 388
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 407 VRSDNKLMR-EIATFTRVSPNQRQMALNKFYEnvSNTPAAQEILNSWGLSLTNNSNKISGRQMdieqiyfSKISVSAGRS 485
Cdd:PLN03202 389 TKALSTLQRsSLVEKSRQKPQERMKVLTDALK--SSNYDADPMLRSCGISISSQFTQVEGRVL-------PAPKLKVGNG 459
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 486 AEFS----KHAVTNEML-KVVHLSKWIIIHLrNYRQAATSLLDNMKQACESLGMNISNP-TMISLDHD--------RIDA 551
Cdd:PLN03202 460 EDFFprngRWNFNNKKLvEPTKIERWAVVNF-SARCDIRHLVRDLIKCGEMKGINIEPPfDVFEENPQfrrapppvRVEK 538
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 552 YIQALRRNITMNTQMVVCICHNRRD-DRYAAIKKICCSEIPIPSQVInAKTLQNDLKIRSVVQKIvlqmNCKLGG--SLW 628
Cdd:PLN03202 539 MFEQIQSKLPGPPQFLLCILPERKNsDIYGPWKKKNLSEFGIVTQCI-APTRVNDQYLTNVLLKI----NAKLGGlnSLL 613
                        410       420       430       440       450       460       470       480
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 629 TVK----IPFKN---VMICGIDSYHDPSNRGN--SVAAFVASinssySQW-----YSKAV-VQTKREEIVNGLsasF--- 690
Cdd:PLN03202 614 AIEhspsIPLVSkvpTIILGMDVSHGSPGQSDvpSIAAVVSS-----RQWplisrYRASVrTQSPKVEMIDSL---Fkpv 685
                        490       500       510       520       530       540       550       560
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 691 ----------EIALKMYRKRNGKLPTNIIIYRDGIGDGQLYTCLNYEIPQFEMVC-----GNRIKISYIVVQKRINTRIF 755
Cdd:PLN03202 686 gdkdddgiirELLLDFYTSSGKRKPEQIIIFRDGVSESQFNQVLNIELDQIIEACkfldeSWSPKFTVIVAQKNHHTKFF 765
                        570       580       590       600       610       620       630
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 756 SGSGIhlENPLPGTVVDQHITKSNMYDFFLVSQLVRQGTVTPTHYVVLRDDCNYGPDIIQKLSYKLCFLY 825
Cdd:PLN03202 766 QAGSP--DNVPPGTVVDNKICHPRNNDFYMCAHAGMIGTTRPTHYHVLLDEIGFSADDLQELVHSLSYVY 833
PAZ pfam02170
PAZ domain; This domain is named PAZ after the proteins Piwi Argonaut and Zwille. This domain ...
293-424 1.99e-33

PAZ domain; This domain is named PAZ after the proteins Piwi Argonaut and Zwille. This domain is found in two families of proteins that are involved in post-transcriptional gene silencing. These are the Piwi family and the Dicer family, that includes the Carpel factory protein. The function of the domains is unknown but has been suggested to mediate complex formation between proteins of the Piwi and Dicer families by hetero-dimerization. The three-dimensional structure of this domain has been solved. The PAZ domain is composed of two subdomains. One subdomain is similar to the OB fold, albeit with a different topology. The OB-fold is well known as a single-stranded nucleic acid binding fold. The second subdomain is composed of a beta-hairpin followed by an alpha-helix. The PAZ domains shows low-affinity nucleic acid binding and appears to interact with the 3' ends of single-stranded regions of RNA in the cleft between the two subdomains. PAZ can bind the characteriztic two-base 3' overhangs of siRNAs, indicating that although PAZ may not be a primary nucleic acid binding site in Dicer or RISC, it may contribute to the specific and productive incorporation of siRNAs and miRNAs into the RNAi pathway.


Pssm-ID: 460472  Cd Length: 123  Bit Score: 124.61  E-value: 1.99e-33
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635  293 LEMLVDLYQQNVEH-YQESARKMLVGNIVLTRYNN-RTYKINDICFDQNPTCQFEIKTG-CTSYVEYYKQYHNINIKDVN 369
Cdd:pfam02170   1 LDFLKRLQQQKDRRdFRKEAKKALKGLKVYTTYNNpRTYRIDGITFDPTPESTFPLKDGkEITVVDYFKKKYNIDLKYPD 80
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 281366635  370 QPLIYSIKKSRGIpaerenlqfCLIPELCYLTglrDEVRSDNKLMREIATFTRVS 424
Cdd:pfam02170  81 QPLLLVGKKRPKV---------YLPPELCNLV---DGQRYTKKLMPSIAQRTRLL 123
PAZ cd02825
PAZ domain, named PAZ after the proteins Piwi Argonaut and Zwille. PAZ is found in two ...
289-401 1.75e-08

PAZ domain, named PAZ after the proteins Piwi Argonaut and Zwille. PAZ is found in two families of proteins that are essential components of RNA-mediated gene-silencing pathways, including RNA interference, the piwi and Dicer families. PAZ functions as a nucleic-acid binding domain, with a strong preference for single-stranded nucleic acids (RNA or DNA) or RNA duplexes with single-stranded 3' overhangs. It has been suggested that the PAZ domain provides a unique mode for the recognition of the two 3'-terminal nucleotides in single-stranded nucleic acids and buries the 3' OH group, and that it might recognize characteristic 3' overhangs in siRNAs within RISC (RNA-induced silencing) and other complexes. This parent model also contains structures of an archaeal PAZ domain.


Pssm-ID: 239207  Cd Length: 115  Bit Score: 53.23  E-value: 1.75e-08
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 289 QKTVLEMLVDLYQQ------NVEHYQESARKMLVGNIVLTRYN--NRTYKINDICFDQNPTCQFEIKTGCTSYVEYYKQY 360
Cdd:cd02825    1 ADPVIETMCKFPKDreidtpLLDSPREEFTKELKGLKVEDTHNplNRVYRPDGETRLKAPSQLKHSDGKEITFADYFKER 80
                         90       100       110       120
                 ....*....|....*....|....*....|....*....|.
gi 281366635 361 HNINIKDVNQPLIYSIKKSRGIpaeRENLqfcLIPELCYLT 401
Cdd:cd02825   81 YNLTLTDLNQPLLIVKFSSKKS---YSIL---LPPELCVIT 115
PIWI COG1431
PIWI domain, catalyzes dsRNA-guided hydrolysis of ssRNA, involved in RNA silencing, RNA ...
360-771 7.09e-08

PIWI domain, catalyzes dsRNA-guided hydrolysis of ssRNA, involved in RNA silencing, RNA metabolism and antiviral defense [Translation, ribosomal structure and biogenesis, Defense mechanisms];


Pssm-ID: 441040 [Multi-domain]  Cd Length: 616  Bit Score: 56.35  E-value: 7.09e-08
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 360 YHNINIKDVNQPLIYSIKKS--RGIPAERENLQFCLIPELCYLTGLRDEVRSDNKLMREIATFTRVSPNQRQMALNKFYE 437
Cdd:COG1431   99 YDKRRIALAKSGEEEVSRLRdyASILLLSLTFDEDRARGEKFFRVLTNASTKKPVGDDLHPTARQLKVEKRLLADAKVDE 178
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 438 -NVSNTPAAQEILNSWGLSLTNNSNKISGRQMDIEQIY-FSKISVSAGR--------SAEFSKHAVTNEMLKVVHLSKWI 507
Cdd:COG1431  179 lPARLLLVYQSISLQNIISVGGSRLLAQRLEQVSLGKVrVRLIKLAIRRkvrdpkelRDSAQYLAKEKDRELFELDGRSR 258
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 508 IIHLRNYRQAATSLLDNMKQACESLGMNISNPTMISLDHDRiDAYIQALRRNITMNTQ--MVVCICHNRRDDR------- 578
Cdd:COG1431  259 LKSFETEALKEEFLRKLSKKLKSLSGIKLNIITKKSGPESK-EALSEALKQLANEQGPdlVLVFIPQSDKADDdeesfdl 337
                        250       260       270       280       290       300       310       320
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 579 YAAIKKICCSEiPIPSQVINAKTLQNDLkIRSVVQKIVLQMNCKLGGSLWTVK-IPFKNVMICGIDSYHDPSNRGNSVA- 656
Cdd:COG1431  338 YYEIKALLLRR-GIPSQFIREDTLKNSN-LKYILNNVLLGILAKLGGIPWVLNePPGPADLFIGIDVSRIKAGTQRAGGs 415
                        330       340       350       360       370       380       390       400
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 657 AFVASINSSYSQWYSKAVVQtkREEIVNG--LSASFEIALKMYRKRNGKLPTNIIIYRDG-IGDGQLYTCLNYEipqfEM 733
Cdd:COG1431  416 AVVFDSDGELLRYKLSKALQ--AGETIPArdLEDLLKESVDKFEKSAGLKPKRVLIHRDGrFCDEEVEGLKEFL----EA 489
                        410       420       430
                 ....*....|....*....|....*....|....*...
gi 281366635 734 VcgnRIKISYIVVQKRINTRIFSGSGIHLENPLPGTVV 771
Cdd:COG1431  490 F---DIKFDLVEVRKSGSPRLYNNENKGFDAPERGLAV 524
PAZ_CAF_like cd02844
PAZ domain, CAF_like subfamily. CAF (for carpel factory) is a plant homolog of Dicer. CAF has ...
312-373 3.01e-07

PAZ domain, CAF_like subfamily. CAF (for carpel factory) is a plant homolog of Dicer. CAF has been implicated in flower morphogenesis and in early Arabidopsis development and might function through posttranscriptional regulation of specific mRNA molecules. PAZ domains are named after the proteins Piwi, Argonaut, and Zwille. PAZ is found in two families of proteins that are essential components of RNA-mediated gene-silencing pathways, including RNA interference, the Piwi and Dicer families. PAZ functions as a nucleic-acid binding domain, with a strong preference for single-stranded nucleic acids (RNA or DNA) or RNA duplexes with single-stranded 3' overhangs. It has been suggested that the PAZ domain provides a unique mode for the recognition of the two 3'-terminal nucleotides in single-stranded nucleic acids and buries the 3' OH group, and that it might recognize characteristic 3' overhangs in siRNAs within RISC (RNA-induced silencing) and other complexes.


Pssm-ID: 239210  Cd Length: 135  Bit Score: 50.50  E-value: 3.01e-07
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 281366635 312 RKMLVGNIVLTRYNNRTYKInDICFDQNPTCQFEIKTGCT--SYVEYYKQYHNINIKDVNQPLI 373
Cdd:cd02844   28 ACDLKGSVVTAPHNGRFYVI-SGILDLNANSSFPGKEGLGyaTYAEYFKEKYGIVLNHPNQPLL 90
Piwi_piwi-like_ProArk cd04659
Piwi_piwi-like_ProArk: PIWI domain, Piwi-like subfamily found in Archaea and Bacteria. RNA ...
592-714 4.40e-07

Piwi_piwi-like_ProArk: PIWI domain, Piwi-like subfamily found in Archaea and Bacteria. RNA silencing refers to a group of related gene-silencing mechanisms mediated by short RNA molecules, including siRNAs, miRNAs, and heterochromatin-related guide RNAs. The central component of the RNA-induced silencing complex (RISC) and related complexes is Argonaute. The PIWI domain is the C-terminal portion of Argonaute and consists of two subdomains, one of which provides the 5' anchoring of the guide RNA and the other, the catalytic site for slicing. This domain is also found in closely related proteins, including the Piwi subfamily, where it is believed to perform a crucial role in germline cells, via a similar mechanism.


Pssm-ID: 240017 [Multi-domain]  Cd Length: 404  Bit Score: 53.16  E-value: 4.40e-07
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 592 IPSQVINAKTLQNDLKIRSVVQKIVLQMNCKLGGSLWTVK-IPFKNVMICGIDSYHDPSNRGNSVA-AFVASINS-SYSQ 668
Cdd:cd04659  144 IPTQFVREDTLKNRQDLAYVAWNLALALYAKLGGIPWKLDaDSDPADLYIGIGFARSRDGEVRVTGcAQVFDSDGlGLIL 223
                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*..
gi 281366635 669 WYSKAVVQTKREEiVNGLSASFEIALKMYRKRNGK-LPTNIIIYRDG 714
Cdd:cd04659  224 RGAPIEEPTEDRS-PADLKDLLKRVLEGYRESHRGrDPKRLVLHKDG 269
PAZ_dicer_like cd02843
PAZ domain, dicer_like subfamily. Dicer is an RNAse involved in cleaving dsRNA in the RNA ...
303-373 3.50e-05

PAZ domain, dicer_like subfamily. Dicer is an RNAse involved in cleaving dsRNA in the RNA interference pathway. It generates dsRNAs which are approximately 20 bp long (siRNAs), which in turn target hydrolysis of homologous RNAs. PAZ domains are named after the proteins Piwi Argonaut and Zwille. PAZ is found in two families of proteins that are essential components of RNA-mediated gene-silencing pathways, including RNA interference, the piwi and Dicer families. PAZ functions as a nucleic-acid binding domain, with a strong preference for single-stranded nucleic acids (RNA or DNA) or RNA duplexes with single-stranded 3' overhangs. It has been suggested that the PAZ domain provides a unique mode for the recognition of the two 3'-terminal nucleotides in single-stranded nucleic acids and buries the 3' OH group, and that it might recognize characteristic 3' overhangs in siRNAs within RISC (RNA-induced silencing) and other complexes.


Pssm-ID: 239209  Cd Length: 122  Bit Score: 43.97  E-value: 3.50e-05
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 281366635 303 NVEHYQESarkmlvgnIVLTRYNNRT----YKINDICFDQNPTCQFEiKTGCTSYVEYYKQYHNINIKDVNQPLI 373
Cdd:cd02843   37 DAEDYQDA--------VVMPWYRNFDqpqyFYVAEICTDLRPLSKFP-GPEYETFEEYYKKKYKLDIQNLNQPLL 102
PAZ_argonaute_like cd02846
PAZ domain, argonaute_like subfamily. Argonaute is part of the RNA-induced silencing complex ...
289-394 3.92e-04

PAZ domain, argonaute_like subfamily. Argonaute is part of the RNA-induced silencing complex (RISC), and is an endonuclease that plays a key role in the RNA interference pathway. The PAZ domain has been named after the proteins Piwi,Argonaut, and Zwille. PAZ is found in two families of proteins that are essential components of RNA-mediated gene-silencing pathways, including RNA interference, the Piwi and Dicer families. PAZ functions as a nucleic acid binding domain, with a strong preference for single-stranded nucleic acids (RNA or DNA) or RNA duplexes with single-stranded 3' overhangs. It has been suggested that the PAZ domain provides a unique mode for the recognition of the two 3'-terminal nucleotides in single-stranded nucleic acids and buries the 3' OH group, and that it might recognize characteristic 3' overhangs in siRNAs within RISC (RNA-induced silencing) and other complexes.


Pssm-ID: 239212 [Multi-domain]  Cd Length: 114  Bit Score: 40.76  E-value: 3.92e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 281366635 289 QKTVLEMLVDLYQQNVEHYqeSARKMLVG-NIVLTR--YNNRTYKINDICFDQNPTCQFEIKTGCT--SYVEYYKQYHNI 363
Cdd:cd02846    8 LKEFLGFDTPLGLSDNDRR--KLKKALKGlKVEVTHrgNTNRKYKIKGLSAEPASQQTFELKDGEKeiSVADYFKEKYNI 85
                         90       100       110
                 ....*....|....*....|....*....|...
gi 281366635 364 NIKDVNQPLIYSIKKSRGI--PAErenlqFCLI 394
Cdd:cd02846   86 RLKYPNLPCLQVGRKGKPNylPME-----LCNI 113
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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