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Conserved domains on  [gi|2462579416|ref|XP_054178958|]
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protein FAM83C isoform X1 [Homo sapiens]

Protein Classification

phospholipase D-like domain-containing protein( domain architecture ID 60949)

phospholipase D-like domain-containing protein may hydrolyze phospholipid phosphodiester bonds to yield phosphatidic acid and a free polar head group, and may also catalyze the transphosphatidylation of phospholipids to acceptor alcohols

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
PLDc_SF super family cl15239
Catalytic domain of phospholipase D superfamily proteins; Catalytic domain of phospholipase D ...
1-128 1.02e-89

Catalytic domain of phospholipase D superfamily proteins; Catalytic domain of phospholipase D (PLD) superfamily proteins. The PLD superfamily is composed of a large and diverse group of proteins including plant, mammalian and bacterial PLDs, bacterial cardiolipin (CL) synthases, bacterial phosphatidylserine synthases (PSS), eukaryotic phosphatidylglycerophosphate (PGP) synthase, eukaryotic tyrosyl-DNA phosphodiesterase 1 (Tdp1), and some bacterial endonucleases (Nuc and BfiI), among others. PLD enzymes hydrolyze phospholipid phosphodiester bonds to yield phosphatidic acid and a free polar head group. They can also catalyze the transphosphatidylation of phospholipids to acceptor alcohols. The majority of members in this superfamily contain a short conserved sequence motif (H-x-K-x(4)-D, where x represents any amino acid residue), called the HKD signature motif. There are varying expanded forms of this motif in different family members. Some members contain variant HKD motifs. Most PLD enzymes are monomeric proteins with two HKD motif-containing domains. Two HKD motifs from two domains form a single active site. Some PLD enzymes have only one copy of the HKD motif per subunit but form a functionally active dimer, which has a single active site at the dimer interface containing the two HKD motifs from both subunits. Different PLD enzymes may have evolved through domain fusion of a common catalytic core with separate substrate recognition domains. Despite their various catalytic functions and a very broad range of substrate specificities, the diverse group of PLD enzymes can bind to a phosphodiester moiety. Most of them are active as bi-lobed monomers or dimers, and may possess similar core structures for catalytic activity. They are generally thought to utilize a common two-step ping-pong catalytic mechanism, involving an enzyme-substrate intermediate, to cleave phosphodiester bonds. The two histidine residues from the two HKD motifs play key roles in the catalysis. Upon substrate binding, a histidine from one HKD motif could function as the nucleophile, attacking the phosphodiester bond to create a covalent phosphohistidine intermediate, while the other histidine residue from the second HKD motif could serve as a general acid, stabilizing the leaving group.


The actual alignment was detected with superfamily member cd09183:

Pssm-ID: 472788  Cd Length: 274  Bit Score: 277.89  E-value: 1.02e-89
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLCDLMEASSRRGVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPNMRVRSTCGDTYCSKAGRRFTGQALEKFV 80
Cdd:cd09183   147 MDLFTDVDILCDLMEASNKRRVPVYLLLDEENLGHFLEMCEKLDLNKTSLPNMRIRSVCGDTYCTKSGKKFTGQVLEKFL 226
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*...
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGRIVEDFDREFRCLYAES 128
Cdd:cd09183   227 LIDCEQVVAGSYSFTWLSSQVHSNLVTHFRGNIVEEFDREFRCLYADS 274
 
Name Accession Description Interval E-value
PLDc_FAM83C_N cd09183
N-terminal phospholipase D-like domain of the uncharacterized protein, Family with sequence ...
1-128 1.02e-89

N-terminal phospholipase D-like domain of the uncharacterized protein, Family with sequence similarity 83C; N-terminal phospholipase D (PLD)-like domain of the uncharacterized protein, Family with sequence similarity 83C (FAM83C). Since the N-terminal PLD-like domain of FAM83 proteins shows only trace similarity to the PLD catalytic domain and lacks the functionally important histidine residue, FAM83 proteins may share a similar three-dimensional fold with PLD enzymes, but are most unlikely to carry PLD activity. The N-terminus of FAM83C shows high homology to other FAM83 family members, indicating that FAM83C might have arisen early in vertebrate evolution by duplication of a gene in the FAM83 family.


Pssm-ID: 197280  Cd Length: 274  Bit Score: 277.89  E-value: 1.02e-89
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLCDLMEASSRRGVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPNMRVRSTCGDTYCSKAGRRFTGQALEKFV 80
Cdd:cd09183   147 MDLFTDVDILCDLMEASNKRRVPVYLLLDEENLGHFLEMCEKLDLNKTSLPNMRIRSVCGDTYCTKSGKKFTGQVLEKFL 226
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*...
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGRIVEDFDREFRCLYAES 128
Cdd:cd09183   227 LIDCEQVVAGSYSFTWLSSQVHSNLVTHFRGNIVEEFDREFRCLYADS 274
FAM83 pfam07894
FAM83 A-H; The FAM83 family members include FAM83A-H. They are oncogenes that function as ...
1-130 7.95e-83

FAM83 A-H; The FAM83 family members include FAM83A-H. They are oncogenes that function as intermediaries in EGFR/RAS signaling.


Pssm-ID: 462308  Cd Length: 276  Bit Score: 259.78  E-value: 7.95e-83
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLCDLMEASSRRGVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPNMRVRSTCGDTYCSKAGRRFTGQALEKFV 80
Cdd:pfam07894 147 MDVFTDVDIFCDLLEAASKRGVPVYILLDEANLKHFLEMCEKLQVNLGHLKNMRVRSVTGDTYYSRSGKKFTGQLKEKFL 226
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGRIVEDFDREFRCLYAESQP 130
Cdd:pfam07894 227 LVDGEKVLTGSYSFTWSSSKLHRNLVTVLTGQVVESFDEEFRILYAQSKP 276
 
Name Accession Description Interval E-value
PLDc_FAM83C_N cd09183
N-terminal phospholipase D-like domain of the uncharacterized protein, Family with sequence ...
1-128 1.02e-89

N-terminal phospholipase D-like domain of the uncharacterized protein, Family with sequence similarity 83C; N-terminal phospholipase D (PLD)-like domain of the uncharacterized protein, Family with sequence similarity 83C (FAM83C). Since the N-terminal PLD-like domain of FAM83 proteins shows only trace similarity to the PLD catalytic domain and lacks the functionally important histidine residue, FAM83 proteins may share a similar three-dimensional fold with PLD enzymes, but are most unlikely to carry PLD activity. The N-terminus of FAM83C shows high homology to other FAM83 family members, indicating that FAM83C might have arisen early in vertebrate evolution by duplication of a gene in the FAM83 family.


Pssm-ID: 197280  Cd Length: 274  Bit Score: 277.89  E-value: 1.02e-89
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLCDLMEASSRRGVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPNMRVRSTCGDTYCSKAGRRFTGQALEKFV 80
Cdd:cd09183   147 MDLFTDVDILCDLMEASNKRRVPVYLLLDEENLGHFLEMCEKLDLNKTSLPNMRIRSVCGDTYCTKSGKKFTGQVLEKFL 226
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*...
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGRIVEDFDREFRCLYAES 128
Cdd:cd09183   227 LIDCEQVVAGSYSFTWLSSQVHSNLVTHFRGNIVEEFDREFRCLYADS 274
FAM83 pfam07894
FAM83 A-H; The FAM83 family members include FAM83A-H. They are oncogenes that function as ...
1-130 7.95e-83

FAM83 A-H; The FAM83 family members include FAM83A-H. They are oncogenes that function as intermediaries in EGFR/RAS signaling.


Pssm-ID: 462308  Cd Length: 276  Bit Score: 259.78  E-value: 7.95e-83
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLCDLMEASSRRGVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPNMRVRSTCGDTYCSKAGRRFTGQALEKFV 80
Cdd:pfam07894 147 MDVFTDVDIFCDLLEAASKRGVPVYILLDEANLKHFLEMCEKLQVNLGHLKNMRVRSVTGDTYYSRSGKKFTGQLKEKFL 226
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGRIVEDFDREFRCLYAESQP 130
Cdd:pfam07894 227 LVDGEKVLTGSYSFTWSSSKLHRNLVTVLTGQVVESFDEEFRILYAQSKP 276
PLDc_FAM83_N cd09119
N-terminal phospholipase D-like domain of proteins from the Family with sequence similarity 83; ...
1-128 7.21e-78

N-terminal phospholipase D-like domain of proteins from the Family with sequence similarity 83; N-terminal phospholipase D (PLD)-like domain of vetebrate proteins from the Family with sequence similarity 83 (FAM83), which is comprised of 8 members, designated FAM83A through FAM83H. Since the N-terminal PLD-like domain of FAM83 proteins shows only trace similarity to the PLD catalytic domain and lacks the functionally important histidine residue, the FAM83 proteins may share a similar three-dimensional fold with PLD enzymes, but are unlikely to carry PLD activity. Members of the FAM83 are mostly uncharacterized proteins. FAM83A, also known as tumor antigen BJ-TSA-9, is a novel tumor-specific gene highly expressed in human lung adenocarcinoma. FAM83D, also known as spindle protein CHICA, is a cell-cycle-regulated spindle component which localizes to the mitotic spindle and is both upregulated and phosphorylated during mitosis. The gene encoding protein FAM83H is the first gene involved in the etiology of amelogenesis imperfecta (AI), that encodes a non-secreted protein due to the absence of a signal peptide. Defects in gene FAM83H cause autosomal dominant hypocalcified amelogenesis imperfecta (ADHCAI). FAM83B, FAM83C, FAM83F, and FAM83G are uncharacterized proteins present across vertebrates while FAM83E is an uncharacterized protein found only in mammals.


Pssm-ID: 197218  Cd Length: 269  Bit Score: 246.91  E-value: 7.21e-78
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLCDLMEASSRRGVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPNMRVRSTCGDTYCSKAGRRFTGQALEKFV 80
Cdd:cd09119   142 MDVFTDVDIFCDLLEAANKRGVAVYILLDQGNVKHFLEMCDKLQLSDEHLKNMRVRSVGGKTYCSRSGKKFKGQMKEKFL 221
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*...
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGRIVEDFDREFRCLYAES 128
Cdd:cd09119   222 LVDGDRVVSGSYSFTWSDAKLHRSMLSVLTGQVVESFDEEFRILYAQS 269
PLDc_FAM83A_N cd09181
N-terminal phospholipase D-like domain of the uncharacterized protein, Family with sequence ...
1-133 1.01e-55

N-terminal phospholipase D-like domain of the uncharacterized protein, Family with sequence similarity 83A; N-terminal phospholipase D (PLD)-like domain of the uncharacterized protein, Family with sequence similarity 83A (FAM83A), also known as tumor antigen BJ-TSA-9. FAM83A or BJ-TSA-9 is a novel tumor-specific gene highly expressed in human lung adenocarcinoma. Due to this specific expression pattern, it may serve as a biomarker for lung cancer, especially in the early detection of micrometastasis for lung adenocarcinoma patients. Since the N-terminal PLD-like domain of FAM83 proteins shows only trace similarity to the PLD catalytic domain and lacks the functionally important histidine residue, FAM83 proteins may share a similar three-dimensional fold with PLD enzymes, but are most unlikely to carry PLD activity.


Pssm-ID: 197278  Cd Length: 276  Bit Score: 189.26  E-value: 1.01e-55
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLCDLMEASSRRGVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPNMRVRSTCGDTYCSKAGRRFTGQALEKFV 80
Cdd:cd09181   144 MDVFTDVEIFCDLLEAANKRNVFVYLLLDHGNLSLFQEMCEKLQINDSHFKNISVRSVEGDTYCAKSGRKFTGQIREKFI 223
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|...
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGRIVEDFDREFRCLYAESQPVEG 133
Cdd:cd09181   224 ISDWREVLSGSYSFTWLSGQVHRNLLVKFKGSAVELFDEEFRHLYASSKPVPG 276
PLDc_FAM83B_N cd09182
N-terminal phospholipase D-like domain of the uncharacterized protein, Family with sequence ...
1-128 2.14e-42

N-terminal phospholipase D-like domain of the uncharacterized protein, Family with sequence similarity 83B; N-terminal phospholipase D (PLD)-like domain of the uncharacterized protein, Family with sequence similarity 83B (FAM83B). Since the N-terminal PLD-like domain of FAM83 proteins shows only trace similarity to the PLD catalytic domain and lacks the functionally important histidine residue, FAM83 proteins may share a similar three-dimensional fold with PLD enzymes, but are most unlikely to carry PLD activity. The N-terminus of FAM83B shows high homology to other FAM83 family members, indicating that FAM83B might have arisen early in vertebrate evolution by duplication of a gene in the FAM83 family.


Pssm-ID: 197279  Cd Length: 266  Bit Score: 153.07  E-value: 2.14e-42
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLCDLMEASSRrGVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPNMRVRSTCGDTYCSKAGRRFTGQALEKFV 80
Cdd:cd09182   137 MDVFTDVDIFKEVVEASTR-GVAVYILLDHSHFASFLTMTEKQGIQIQRLRNIRVRTVKGQDYQCKSGAKFHGAMEQKFL 215
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*...
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGRIVEDFDREFRCLYAES 128
Cdd:cd09182   216 LVDCQKVLYGSYSYMWSFEKIHLSMVQVITGQLVESYDEEFRTLYARS 263
PLDc_FAM83D_N cd09184
N-terminal phospholipase D-like domain of the protein, Family with sequence similarity 83D; ...
1-128 2.07e-39

N-terminal phospholipase D-like domain of the protein, Family with sequence similarity 83D; N-terminal phospholipase D (PLD)-like domain of the protein Family with sequence similarity 83D (FAM83D), also known as spindle protein CHICA. CHICA is a cell-cycle-regulated spindle component, which localizes to the mitotic spindle and is both upregulated and phosphorylated during mitosis. CHICA is required to localize the chromokinesin Kid to the mitotic spindle and serves as a novel interaction partner of Kid, which is required for the generation of polar ejection forces and chromosome congression. Since the N-terminal PLD-like domain of FAM83D shows only trace similarity to the PLD catalytic domain and lacks the functionally important histidine residue, FAM83D may share a similar three-dimensional fold with PLD enzymes, but is unlikely to carry PLD activity.


Pssm-ID: 197281  Cd Length: 271  Bit Score: 145.01  E-value: 2.07e-39
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLCDLMEASSRRGVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPNMRVRSTCGDTYCSKAGRRFTGQALEKFV 80
Cdd:cd09184   144 MDSFTDLDIFRDLREACRKRRVPVYILLDQSSVSHFLQMCKNLGVHLEQEKLMRVRTITGNTYYTRSGAKIIGKVHEKFM 223
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*...
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGRIVEDFDREFRCLYAES 128
Cdd:cd09184   224 LIDGIKVATGSYSFTWTDGKLNSSNLLILSGQVVEKFDLEFRILYAQS 271
PLDc_FAM83H_N cd09188
N-terminal phospholipase D-like domain of the uncharacterized protein, Family with sequence ...
1-128 2.60e-33

N-terminal phospholipase D-like domain of the uncharacterized protein, Family with sequence similarity 83H; N-terminal phospholipase D (PLD)-like domain of the protein, Family with sequence similarity 83H (FAM83H) on chromosome 8q24.3, which localizes in the intracellular environment and is associated with vesicles, can be regulated by kinases, and plays important roles during ameloblast differentiation and enamel matrix calcification. The gene encoding protein FAM83H is the first gene involved in the etiology of amelogenesis imperfecta (AI), that encodes a non-secreted protein due to the absence of a signal peptide. Defects in gene FAM83H cause autosomal dominant hypocalcified amelogenesis imperfecta (ADHCAI). Since the N-terminal PLD-like domain of FAM83H shows only trace similarity to the PLD catalytic domain and lacks the functionally important histidine residue, FAM83H may share a similar three-dimensional fold with PLD enzymes, but is most unlikely to carry PLD activity.


Pssm-ID: 197284  Cd Length: 265  Bit Score: 128.05  E-value: 2.60e-33
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLCDLMEASSRRgVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPNMRVRSTCGDTYCSKAGRRFTGQALEKFV 80
Cdd:cd09188   139 MDIFTDVDILSELLEAAARR-VPVYILLDEMNAQLFLDMAAKCRVNLNYVEFLRVRTVSGPTYFCRTGKSFKGHVKEKFL 217
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*...
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGRIVEDFDREFRCLYAES 128
Cdd:cd09188   218 LVDCRVVLSGNYSFMWSFEKIHRSIAHIFQGELVASFDEEFRILFAQS 265
PLDc_FAM83F_N cd09186
N-terminal phospholipase D-like domain of the uncharacterized protein, Family with sequence ...
1-128 1.75e-32

N-terminal phospholipase D-like domain of the uncharacterized protein, Family with sequence similarity 83F; N-terminal phospholipase D (PLD)-like domain of the uncharacterized protein, Family with sequence similarity 83F (FAM83F). Since the N-terminal PLD-like domain of FAM83 proteins shows only trace similarity to the PLD catalytic domain and lacks the functionally important histidine residue, FAM83 proteins may share a similar three-dimensional fold with PLD enzymes, but are most unlikely to carry PLD activity. The N-terminus of FAM83F shows high homology to other FAM83 family members, indicating that FAM83F might have arisen early in vertebrate evolution by duplication of a gene in the FAM83 family.


Pssm-ID: 197282  Cd Length: 268  Bit Score: 125.78  E-value: 1.75e-32
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLCDLMEASSRRGVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPNMRVRSTCGDTYCSKAGrRFTGQALEKFV 80
Cdd:cd09186   142 MDLFTDLDIFQDIVDAASKRRVPVYIILDENGVKHFLEMCSRLQLSDFHIRNIRVRSVTGSGFYMSFG-KIPGTLCSKFL 220
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*...
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGRIVEDFDREFRCLYAES 128
Cdd:cd09186   221 MVDGEKVATGSYSFTWSSSRMDRNTLLVLTGQVVEFFDNEFRELYAIS 268
PLDc_FAM83G_N cd09187
N-terminal phospholipase D-like domain of the uncharacterized protein Family with sequence ...
1-128 1.28e-30

N-terminal phospholipase D-like domain of the uncharacterized protein Family with sequence similarity 83G; N-terminal phospholipase D (PLD)-like domain of the uncharacterized protein, Family with sequence similarity 83G (FAM83G). Since the N-terminal PLD-like domain of FAM83 proteins shows only trace similarity to the PLD catalytic domain and lacks the functionally important histidine residue, FAM83 proteins may share a similar three-dimensional fold with PLD enzymes, but are most unlikely to carry PLD activity. The N-terminus of FAM83G shows high homology to other FAM83 family members, indicating that FAM83G might have arisen early in vertebrate evolution by duplication of a gene in the FAM83 family.


Pssm-ID: 197283  Cd Length: 275  Bit Score: 120.74  E-value: 1.28e-30
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLCDLMEASSRRGVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPNMRVRSTCGDTYCSKAGRRFTGQALEKFV 80
Cdd:cd09187   148 MDMFTDVDIFRDLLDAGFKRKVPVYIILDETNVKYFLQMCERAQMHRGHLKNLRVRSCGGTEFFTRSATKFKGSLGQKFM 227
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*...
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGRIVEDFDREFRCLYAES 128
Cdd:cd09187   228 FVDGDRAICGSYSFTWSASRTDRNLITVLSGQVVETFDRQFQDLYLMS 275
PLDc_Nuc_like cd09116
Catalytic domain of EDTA-resistant nuclease Nuc, vertebrate phospholipase D6, and similar ...
1-124 7.38e-04

Catalytic domain of EDTA-resistant nuclease Nuc, vertebrate phospholipase D6, and similar proteins; Catalytic domain of EDTA-resistant nuclease Nuc, vertebrate phospholipase D6 (PLD6, EC 3.1.4.4), and similar proteins. Nuc is an endonuclease from Salmonella typhimurium and the smallest known member of the PLD superfamily. It cleaves both single- and double-stranded DNA. PLD6 selectively hydrolyzes the terminal phosphodiester bond of phosphatidylcholine (PC), with the formation of phosphatidic acid and alcohols. Phosphatidic acid is an essential compound involved in signal transduction. PLD6 also catalyzes the transphosphatidylation of phospholipids to acceptor alcohols, by which various phospholipids can be synthesized. Both Nuc and PLD6 belong to the phospholipase D (PLD) superfamily. They contain a short conserved sequence motif, the HKD motif (H-x-K-x(4)-D, where x represents any amino acid residue), which is essential for catalysis. PLDs utilize a two-step mechanism to cleave phosphodiester bonds: Upon substrate binding, the bond is first attacked by a histidine residue from one HKD motif to form a covalent phosphohistidine intermediate, which is then hydrolyzed by water with the aid of a second histidine residue from the other HKD motif in the opposite subunit. This subfamily also includes some uncharacterized hypothetical proteins, which have two HKD motifs in a single polypeptide chain.


Pssm-ID: 197215 [Multi-domain]  Cd Length: 138  Bit Score: 39.97  E-value: 7.38e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462579416   1 MDIFTDMELLcDLMEASSRRGVPVYLLLAQEHLRHFLEMCYKMDLNGEHLPnmrvrstcgdtYCSKAGRRFTGQaleKFV 80
Cdd:cd09116    29 MYALTDPEIA-EALKRAAKRGVRVRIILDKDSLADNLSITLLALLSNLGIP-----------VRTDSGSKLMHH---KFI 93
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*
gi 2462579416  81 LIDCEQVVAGSYSFTWLCSQAHTSMVLQLRGR-IVEDFDREFRCL 124
Cdd:cd09116    94 IIDGKIVITGSANWTKSGFHRNDENLLIIDDPkLAASFEEEFNRL 138
 
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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