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Conserved domains on  [gi|22094450|gb|AAM91905|]
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cytolethal distending toxin b, partial [Helicobacter sp. 'Flexispira str. Alma']

Protein Classification

exonuclease/endonuclease/phosphatase family protein( domain architecture ID 662)

exonuclease/endonuclease/phosphatase (EEP) family protein may cleave phosphodiester bonds

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
EEP super family cl00490
Exonuclease-Endonuclease-Phosphatase (EEP) domain superfamily; This large superfamily includes ...
1-233 1.03e-115

Exonuclease-Endonuclease-Phosphatase (EEP) domain superfamily; This large superfamily includes the catalytic domain (exonuclease/endonuclease/phosphatase or EEP domain) of a diverse set of proteins including the ExoIII family of apurinic/apyrimidinic (AP) endonucleases, inositol polyphosphate 5-phosphatases (INPP5), neutral sphingomyelinases (nSMases), deadenylases (such as the vertebrate circadian-clock regulated nocturnin), bacterial cytolethal distending toxin B (CdtB), deoxyribonuclease 1 (DNase1), the endonuclease domain of the non-LTR retrotransposon LINE-1, and related domains. These diverse enzymes share a common catalytic mechanism of cleaving phosphodiester bonds; their substrates range from nucleic acids to phospholipids and perhaps proteins.


The actual alignment was detected with superfamily member PRK15251:

Pssm-ID: 469791  Cd Length: 271  Bit Score: 331.26  E-value: 1.03e-115
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22094450    1 SSASTENKWNVSVRQLITGDHPVDILMVQEAGSVPTSARPTGRMIQPGGT--PIQEYVWDLGTRSRPRSVFIYYANIDAG 78
Cdd:PRK15251  35 SSASTESKWNVNVRQLLSGENPADILMVQEAGSLPSSAVPTGRHVQPGGVgiPIDEYTWNLGTRSRPNQVYIYYSRVDVG 114
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22094450   79 ARRVNLAIVSGRQADEVFVISQSTIApevSRPVIGIRLGNDVFFNIHALARGGGDAAALVTAVHDRF-VDQPNLNWLIAG 157
Cdd:PRK15251 115 ANRVNLAIVSRRRADEVIVLRPPTVA---SRPIIGIRIGNDVFFSIHALANGGTDAGAIVRAVHNFFrPNMRHINWMIAG 191
                        170       180       190       200       210       220       230
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 22094450  158 DFNRDPANLLSGLDTR-ITNHTRIVTQNSATHFSMGaanrILDYAIVGRSSNDRSRlalPTITALLMAASVRSHLSS 233
Cdd:PRK15251 192 DFNRSPDRLESTLDTEhLRNRVNIVAPTEPTQRSGG----TLDYAVTGNSNQTFGP---PLLAASLMLASLRSQLAS 261
 
Name Accession Description Interval E-value
PRK15251 PRK15251
cytolethal distending toxin subunit B family protein;
1-233 1.03e-115

cytolethal distending toxin subunit B family protein;


Pssm-ID: 237931  Cd Length: 271  Bit Score: 331.26  E-value: 1.03e-115
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22094450    1 SSASTENKWNVSVRQLITGDHPVDILMVQEAGSVPTSARPTGRMIQPGGT--PIQEYVWDLGTRSRPRSVFIYYANIDAG 78
Cdd:PRK15251  35 SSASTESKWNVNVRQLLSGENPADILMVQEAGSLPSSAVPTGRHVQPGGVgiPIDEYTWNLGTRSRPNQVYIYYSRVDVG 114
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22094450   79 ARRVNLAIVSGRQADEVFVISQSTIApevSRPVIGIRLGNDVFFNIHALARGGGDAAALVTAVHDRF-VDQPNLNWLIAG 157
Cdd:PRK15251 115 ANRVNLAIVSRRRADEVIVLRPPTVA---SRPIIGIRIGNDVFFSIHALANGGTDAGAIVRAVHNFFrPNMRHINWMIAG 191
                        170       180       190       200       210       220       230
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 22094450  158 DFNRDPANLLSGLDTR-ITNHTRIVTQNSATHFSMGaanrILDYAIVGRSSNDRSRlalPTITALLMAASVRSHLSS 233
Cdd:PRK15251 192 DFNRSPDRLESTLDTEhLRNRVNIVAPTEPTQRSGG----TLDYAVTGNSNQTFGP---PLLAASLMLASLRSQLAS 261
CdtB cd09081
CdtB, the catalytic DNase I-like subunit of cytolethal distending toxin (CDT) protein; CDT is ...
1-223 6.35e-83

CdtB, the catalytic DNase I-like subunit of cytolethal distending toxin (CDT) protein; CDT is a secreted protein toxin produced by a number of Gram-negative disease-causing bacteria. CDT causes cell cycle arrest and eventual cell death in eukaryotic cells, as a result of chromosomal DNA damage caused by the catalytic, DNase I-like, CdtB subunit. Bacterial CDTs are generally comprised of three subunits, CdtA, -B and -C. CdtB is translocated into the host cell, where it acts as a genotoxin. CdtA and CdtC are needed for cell surface binding and cellular entry, and it is likely that they remain associated with the membrane, when CdtB is internalized. CdtB enters the target nucleus via nuclear translocation signal domain(s). This family belongs to the large EEP (exonuclease/endonuclease/phosphatase) superfamily that contains functionally diverse enzymes that share a common catalytic mechanism of cleaving phosphodiester bonds.


Pssm-ID: 197315  Cd Length: 247  Bit Score: 247.31  E-value: 6.35e-83
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22094450   1 SSASTENKWNVSVRQLITGdHPVDILMVQEAGSVPTSARPTGR-------MIQPGGTPIQEYVWDLGTRSRPRSVFIYYA 73
Cdd:cd09081   9 ASASTESKWNTNVRQMLRG-NNADILMIQEAGALPASARRTGRpaisnldQIFGVGIPVEEYTWNLGTSSRPENVYIYYY 87
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22094450  74 NIDAGARRVNLAIVSGRQADEVFVISQsTIAPEVSRPVIGIRLGNDVFFNIHALARGGGDAAALVTAVHDRFV-DQPNLN 152
Cdd:cd09081  88 DRDVGANRVNLAIVSRQRADEVFILSP-TVATSTSRPILGIRIGNDVFFTIHALANGGNDAPALVNIIDNFFAnNRPNAT 166
                       170       180       190       200       210       220       230
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 22094450 153 WLIAGDFNRDPANLLSGLDTRITNH--TRIVTQNSATHFSmgaaNRILDYAIVGRsSNDRSRLALPTITALLM 223
Cdd:cd09081 167 WVIMGDFNRSPDELEPSLRQPPAVTpnINIVSPNEATHPS----GNTLDYAVAGG-SNARSRIAASLIGALLR 234
 
Name Accession Description Interval E-value
PRK15251 PRK15251
cytolethal distending toxin subunit B family protein;
1-233 1.03e-115

cytolethal distending toxin subunit B family protein;


Pssm-ID: 237931  Cd Length: 271  Bit Score: 331.26  E-value: 1.03e-115
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22094450    1 SSASTENKWNVSVRQLITGDHPVDILMVQEAGSVPTSARPTGRMIQPGGT--PIQEYVWDLGTRSRPRSVFIYYANIDAG 78
Cdd:PRK15251  35 SSASTESKWNVNVRQLLSGENPADILMVQEAGSLPSSAVPTGRHVQPGGVgiPIDEYTWNLGTRSRPNQVYIYYSRVDVG 114
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22094450   79 ARRVNLAIVSGRQADEVFVISQSTIApevSRPVIGIRLGNDVFFNIHALARGGGDAAALVTAVHDRF-VDQPNLNWLIAG 157
Cdd:PRK15251 115 ANRVNLAIVSRRRADEVIVLRPPTVA---SRPIIGIRIGNDVFFSIHALANGGTDAGAIVRAVHNFFrPNMRHINWMIAG 191
                        170       180       190       200       210       220       230
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 22094450  158 DFNRDPANLLSGLDTR-ITNHTRIVTQNSATHFSMGaanrILDYAIVGRSSNDRSRlalPTITALLMAASVRSHLSS 233
Cdd:PRK15251 192 DFNRSPDRLESTLDTEhLRNRVNIVAPTEPTQRSGG----TLDYAVTGNSNQTFGP---PLLAASLMLASLRSQLAS 261
CdtB cd09081
CdtB, the catalytic DNase I-like subunit of cytolethal distending toxin (CDT) protein; CDT is ...
1-223 6.35e-83

CdtB, the catalytic DNase I-like subunit of cytolethal distending toxin (CDT) protein; CDT is a secreted protein toxin produced by a number of Gram-negative disease-causing bacteria. CDT causes cell cycle arrest and eventual cell death in eukaryotic cells, as a result of chromosomal DNA damage caused by the catalytic, DNase I-like, CdtB subunit. Bacterial CDTs are generally comprised of three subunits, CdtA, -B and -C. CdtB is translocated into the host cell, where it acts as a genotoxin. CdtA and CdtC are needed for cell surface binding and cellular entry, and it is likely that they remain associated with the membrane, when CdtB is internalized. CdtB enters the target nucleus via nuclear translocation signal domain(s). This family belongs to the large EEP (exonuclease/endonuclease/phosphatase) superfamily that contains functionally diverse enzymes that share a common catalytic mechanism of cleaving phosphodiester bonds.


Pssm-ID: 197315  Cd Length: 247  Bit Score: 247.31  E-value: 6.35e-83
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22094450   1 SSASTENKWNVSVRQLITGdHPVDILMVQEAGSVPTSARPTGR-------MIQPGGTPIQEYVWDLGTRSRPRSVFIYYA 73
Cdd:cd09081   9 ASASTESKWNTNVRQMLRG-NNADILMIQEAGALPASARRTGRpaisnldQIFGVGIPVEEYTWNLGTSSRPENVYIYYY 87
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22094450  74 NIDAGARRVNLAIVSGRQADEVFVISQsTIAPEVSRPVIGIRLGNDVFFNIHALARGGGDAAALVTAVHDRFV-DQPNLN 152
Cdd:cd09081  88 DRDVGANRVNLAIVSRQRADEVFILSP-TVATSTSRPILGIRIGNDVFFTIHALANGGNDAPALVNIIDNFFAnNRPNAT 166
                       170       180       190       200       210       220       230
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 22094450 153 WLIAGDFNRDPANLLSGLDTRITNH--TRIVTQNSATHFSmgaaNRILDYAIVGRsSNDRSRLALPTITALLM 223
Cdd:cd09081 167 WVIMGDFNRSPDELEPSLRQPPAVTpnINIVSPNEATHPS----GNTLDYAVAGG-SNARSRIAASLIGALLR 234
EEP cd08372
Exonuclease-Endonuclease-Phosphatase (EEP) domain superfamily; This large superfamily includes ...
20-206 1.29e-04

Exonuclease-Endonuclease-Phosphatase (EEP) domain superfamily; This large superfamily includes the catalytic domain (exonuclease/endonuclease/phosphatase or EEP domain) of a diverse set of proteins including the ExoIII family of apurinic/apyrimidinic (AP) endonucleases, inositol polyphosphate 5-phosphatases (INPP5), neutral sphingomyelinases (nSMases), deadenylases (such as the vertebrate circadian-clock regulated nocturnin), bacterial cytolethal distending toxin B (CdtB), deoxyribonuclease 1 (DNase1), the endonuclease domain of the non-LTR retrotransposon LINE-1, and related domains. These diverse enzymes share a common catalytic mechanism of cleaving phosphodiester bonds; their substrates range from nucleic acids to phospholipids and perhaps proteins.


Pssm-ID: 197306 [Multi-domain]  Cd Length: 241  Bit Score: 42.08  E-value: 1.29e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22094450  20 DHPVDILMVQEAGSVPTSARPTGRMIQPGGtpiqeyvwdlgtrsrprsvFIYYANIDAGARRVNLAIVSGRQADEVFVIS 99
Cdd:cd08372  24 ELDPDIVCLQEVKDSQYSAVALNQLLPEGY-------------------HQYQSGPSRKEGYEGVAILSKTPKFKIVEKH 84
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22094450 100 QSTIAPEVS--RPVIGIRLG----NDVFFNIHALARGGG--DAAALVTAVHD--RFVDQPN-LNWLIAGDFNRDPANLls 168
Cdd:cd08372  85 QYKFGEGDSgeRRAVVVKFDvhdkELCVVNAHLQAGGTRadVRDAQLKEVLEflKRLRQPNsAPVVICGDFNVRPSEV-- 162
                       170       180       190       200
                ....*....|....*....|....*....|....*....|....*....
gi 22094450 169 GLDTRITNHTRIVTQNSATHF-----------SMGAANRILDYAIVGRS 206
Cdd:cd08372 163 DSENPSSMLRLFVALNLVDSFetlphaytfdtYMHNVKSRLDYIFVSKS 211
 
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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