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Conserved domains on  [gi|446879537|ref|WP_000956793|]
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methylated-DNA--[protein]-cysteine S-methyltransferase [Escherichia fergusonii]

Protein Classification

methylated-DNA--[protein]-cysteine S-methyltransferase( domain architecture ID 11484647)

methylated-DNA--[protein]-cysteine S-methyltransferase repairs alkylated guanine in DNA by stoichiometrically transferring the alkyl group at the O-6 position to a cysteine residue in the enzyme, resulting in its irreversible inactivation

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
PRK10286 PRK10286
methylated-DNA--[protein]-cysteine S-methyltransferase;
1-171 6.14e-130

methylated-DNA--[protein]-cysteine S-methyltransferase;


:

Pssm-ID: 182355 [Multi-domain]  Cd Length: 171  Bit Score: 360.72  E-value: 6.14e-130
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537   1 MLTLLEDKIATPLGMLAVICDEQFRLRAVEWEEYRHRMMQLLDIHYRTEGYELREANNPGGLCQHLTDYFEGNLSVIDNL 80
Cdd:PRK10286   1 MLRLLEEKIATPLGPLWVICDEQFRLRAVEWEEYSERMVQLLDIHYRKEGYERISATNPGGLSDKLRDYFAGNLSIIDTL 80

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537  81 PTATAGTPFQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKE 160
Cdd:PRK10286  81 PTATGGTPFQREVWQTLRTIPCGQVMHYGQLAEQLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKE 160

                        170
                 ....*....|.
gi 446879537 161 WLLRHEGYLLL 171
Cdd:PRK10286 161 WLLRHEGYLLL 171
 
Name Accession Description Interval E-value
PRK10286 PRK10286
methylated-DNA--[protein]-cysteine S-methyltransferase;
1-171 6.14e-130

methylated-DNA--[protein]-cysteine S-methyltransferase;


Pssm-ID: 182355 [Multi-domain]  Cd Length: 171  Bit Score: 360.72  E-value: 6.14e-130
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537   1 MLTLLEDKIATPLGMLAVICDEQFRLRAVEWEEYRHRMMQLLDIHYRTEGYELREANNPGGLCQHLTDYFEGNLSVIDNL 80
Cdd:PRK10286   1 MLRLLEEKIATPLGPLWVICDEQFRLRAVEWEEYSERMVQLLDIHYRKEGYERISATNPGGLSDKLRDYFAGNLSIIDTL 80

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537  81 PTATAGTPFQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKE 160
Cdd:PRK10286  81 PTATGGTPFQREVWQTLRTIPCGQVMHYGQLAEQLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKE 160

                        170
                 ....*....|.
gi 446879537 161 WLLRHEGYLLL 171
Cdd:PRK10286 161 WLLRHEGYLLL 171
AdaB COG0350
DNA repair enzyme Ada (O6-methylguanine-DNA--protein-cysteine methyltransferase) [Replication, ...
 9-167 2.17e-64

DNA repair enzyme Ada (O6-methylguanine-DNA--protein-cysteine methyltransferase) [Replication, recombination and repair];


Pssm-ID: 440119 [Multi-domain]  Cd Length: 163  Bit Score: 194.71  E-value: 2.17e-64
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537   9 IATPLGMLAVICDEQfRLRAVEWEEYRHRMMQLldihyRTEGYELREANNPGGLCQHLTDYFEGNLSVIDnLPTATAGTP 88
Cdd:COG0350    7 FDTPLGPLLIAATDR-GLCALSFGDDREEALLA-----RFPAALREDPPLLAEAARQLDAYFAGERKDFD-LPLDLRGTP 79

                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 446879537  89 FQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKEWLLRHEG 167
Cdd:COG0350   80 FQRRVWEALRKIPYGETVTYGELARAIGRPKAARAVGSACGANPIPIIIPCHRVIGADGSLGGYAGGLERKRALLELEG 158
ogt TIGR00589
O-6-methylguanine DNA methyltransferase; All proteins in this family for which functions are ...
 87-166 8.65e-50

O-6-methylguanine DNA methyltransferase; All proteins in this family for which functions are known are involved alkyl-DNA transferases which remove alkyl groups from DNA as part of alkylation DNA repair. Some of the proteins in this family are also transcription regulators and have a distinct transcription regulatory domain. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]


Pssm-ID: 273157  Cd Length: 80  Bit Score: 154.78  E-value: 8.65e-50
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537   87 TPFQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKEWLLRHE 166
Cdd:TIGR00589   1 TPFQQKVWKALRTIPYGETKSYGQLAKAIGNPKAARAVGGANGRNPLAILVPCHRVVGKNGTLTGYGGGLERKEFLLEHE 80
DNA_binding_1 pfam01035
6-O-methylguanine DNA methyltransferase, DNA binding domain; This is the C-terminal ...
 88-167 1.20e-48

6-O-methylguanine DNA methyltransferase, DNA binding domain; This is the C-terminal DNA-binding domain of 6-O-methylguanine-DNA methyltransferases.


Pssm-ID: 460036  Cd Length: 81  Bit Score: 152.13  E-value: 1.20e-48
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537   88 PFQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKEWLLRHEG 167
Cdd:pfam01035   1 PFQRRVWEALRQIPYGKTTTYGEIAKLLGRPKAARAVGNALGANPIPIIVPCHRVVGSDGSLGGYAGGLERKRALLELEG 80
ATase cd06445
The DNA repair protein O6-alkylguanine-DNA alkyltransferase (ATase; also known as AGT, AGAT ...
 89-167 3.90e-43

The DNA repair protein O6-alkylguanine-DNA alkyltransferase (ATase; also known as AGT, AGAT and MGMT) reverses O6-alkylation DNA damage by transferring O6-alkyl adducts to an active site cysteine irreversibly, without inducing DNA strand breaks. ATases are specific for repair of guanines with O6-alkyl adducts, however human ATase is not limited to O6-methylguanine, repairing many other adducts at the O6-position of guanine as well. ATase is widely distributed among species. Most ATases have N- and C-terminal domains. The C-terminal domain contains the conserved active-site cysteine motif (PCHR), the O6-alkylguanine binding channel, and the helix-turn-helix (HTH) DNA-binding motif. The active site is located near the recognition helix of the HTH motif. While the C-terminal domain of ATase contains residues that are necessary for DNA binding and alkyl transfer, the function of the N-terminal domain is still unknown. Removal of the N-terminal domain abolishes the activity of the C-terminal domain, suggesting an important structural role for the N-terminal domain in orienting the C-terminal domain for proper catalysis. Some ATase C-terminal domain homologs are either single-domain proteins that lack an N-terminal domain, or have a tryptophan substituted in place of the acceptor cysteine (i.e. the motif PCHR is replaced by PWHR). ATase null mutant mice are viable, fertile, and have a normal lifespan.


Pssm-ID: 119438 [Multi-domain]  Cd Length: 79  Bit Score: 138.00  E-value: 3.90e-43
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 446879537  89 FQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKEWLLRHEG 167
Cdd:cd06445    1 FQRRVWEALRQIPYGEVTTYGQIAKLAGTPKAARAVGSALARNPIPILIPCHRVVRSDGGLGGYRGGLERKRELLELEG 79
 
Name Accession Description Interval E-value
PRK10286 PRK10286
methylated-DNA--[protein]-cysteine S-methyltransferase;
1-171 6.14e-130

methylated-DNA--[protein]-cysteine S-methyltransferase;


Pssm-ID: 182355 [Multi-domain]  Cd Length: 171  Bit Score: 360.72  E-value: 6.14e-130
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537   1 MLTLLEDKIATPLGMLAVICDEQFRLRAVEWEEYRHRMMQLLDIHYRTEGYELREANNPGGLCQHLTDYFEGNLSVIDNL 80
Cdd:PRK10286   1 MLRLLEEKIATPLGPLWVICDEQFRLRAVEWEEYSERMVQLLDIHYRKEGYERISATNPGGLSDKLRDYFAGNLSIIDTL 80

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537  81 PTATAGTPFQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKE 160
Cdd:PRK10286  81 PTATGGTPFQREVWQTLRTIPCGQVMHYGQLAEQLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKE 160

                        170
                 ....*....|.
gi 446879537 161 WLLRHEGYLLL 171
Cdd:PRK10286 161 WLLRHEGYLLL 171
AdaB COG0350
DNA repair enzyme Ada (O6-methylguanine-DNA--protein-cysteine methyltransferase) [Replication, ...
 9-167 2.17e-64

DNA repair enzyme Ada (O6-methylguanine-DNA--protein-cysteine methyltransferase) [Replication, recombination and repair];


Pssm-ID: 440119 [Multi-domain]  Cd Length: 163  Bit Score: 194.71  E-value: 2.17e-64
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537   9 IATPLGMLAVICDEQfRLRAVEWEEYRHRMMQLldihyRTEGYELREANNPGGLCQHLTDYFEGNLSVIDnLPTATAGTP 88
Cdd:COG0350    7 FDTPLGPLLIAATDR-GLCALSFGDDREEALLA-----RFPAALREDPPLLAEAARQLDAYFAGERKDFD-LPLDLRGTP 79

                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 446879537  89 FQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKEWLLRHEG 167
Cdd:COG0350   80 FQRRVWEALRKIPYGETVTYGELARAIGRPKAARAVGSACGANPIPIIIPCHRVIGADGSLGGYAGGLERKRALLELEG 158
ogt TIGR00589
O-6-methylguanine DNA methyltransferase; All proteins in this family for which functions are ...
 87-166 8.65e-50

O-6-methylguanine DNA methyltransferase; All proteins in this family for which functions are known are involved alkyl-DNA transferases which remove alkyl groups from DNA as part of alkylation DNA repair. Some of the proteins in this family are also transcription regulators and have a distinct transcription regulatory domain. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]


Pssm-ID: 273157  Cd Length: 80  Bit Score: 154.78  E-value: 8.65e-50
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537   87 TPFQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKEWLLRHE 166
Cdd:TIGR00589   1 TPFQQKVWKALRTIPYGETKSYGQLAKAIGNPKAARAVGGANGRNPLAILVPCHRVVGKNGTLTGYGGGLERKEFLLEHE 80
DNA_binding_1 pfam01035
6-O-methylguanine DNA methyltransferase, DNA binding domain; This is the C-terminal ...
 88-167 1.20e-48

6-O-methylguanine DNA methyltransferase, DNA binding domain; This is the C-terminal DNA-binding domain of 6-O-methylguanine-DNA methyltransferases.


Pssm-ID: 460036  Cd Length: 81  Bit Score: 152.13  E-value: 1.20e-48
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537   88 PFQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKEWLLRHEG 167
Cdd:pfam01035   1 PFQRRVWEALRQIPYGKTTTYGEIAKLLGRPKAARAVGNALGANPIPIIVPCHRVVGSDGSLGGYAGGLERKRALLELEG 80
PRK00901 PRK00901
methylated-DNA--protein-cysteine methyltransferase; Provisional
 53-167 1.86e-43

methylated-DNA--protein-cysteine methyltransferase; Provisional


Pssm-ID: 234860 [Multi-domain]  Cd Length: 155  Bit Score: 141.34  E-value: 1.86e-43
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537  53 LREANNpgglcqHLTDYFEGNLSVIDnLPTATAGTPFQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNP 132
Cdd:PRK00901  45 LKEANK------QLEEYFEGKRKKFD-LPLAPQGTEFQKKVWKALQEIPYGETRSYKEIAVNIGNPKACRAVGLANNKNP 117

                         90       100       110
                 ....*....|....*....|....*....|....*
gi 446879537 133 ISIVVPCHRVIGRNGTMTGYAGGVQRKEWLLRHEG 167
Cdd:PRK00901 118 IPIFIPCHRVIGANGKLVGYAGGLDIKEKLLKLEK 152
ATase cd06445
The DNA repair protein O6-alkylguanine-DNA alkyltransferase (ATase; also known as AGT, AGAT ...
 89-167 3.90e-43

The DNA repair protein O6-alkylguanine-DNA alkyltransferase (ATase; also known as AGT, AGAT and MGMT) reverses O6-alkylation DNA damage by transferring O6-alkyl adducts to an active site cysteine irreversibly, without inducing DNA strand breaks. ATases are specific for repair of guanines with O6-alkyl adducts, however human ATase is not limited to O6-methylguanine, repairing many other adducts at the O6-position of guanine as well. ATase is widely distributed among species. Most ATases have N- and C-terminal domains. The C-terminal domain contains the conserved active-site cysteine motif (PCHR), the O6-alkylguanine binding channel, and the helix-turn-helix (HTH) DNA-binding motif. The active site is located near the recognition helix of the HTH motif. While the C-terminal domain of ATase contains residues that are necessary for DNA binding and alkyl transfer, the function of the N-terminal domain is still unknown. Removal of the N-terminal domain abolishes the activity of the C-terminal domain, suggesting an important structural role for the N-terminal domain in orienting the C-terminal domain for proper catalysis. Some ATase C-terminal domain homologs are either single-domain proteins that lack an N-terminal domain, or have a tryptophan substituted in place of the acceptor cysteine (i.e. the motif PCHR is replaced by PWHR). ATase null mutant mice are viable, fertile, and have a normal lifespan.


Pssm-ID: 119438 [Multi-domain]  Cd Length: 79  Bit Score: 138.00  E-value: 3.90e-43
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 446879537  89 FQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKEWLLRHEG 167
Cdd:cd06445    1 FQRRVWEALRQIPYGEVTTYGQIAKLAGTPKAARAVGSALARNPIPILIPCHRVVRSDGGLGGYRGGLERKRELLELEG 79
PRK15435 PRK15435
bifunctional DNA-binding transcriptional regulator/O6-methylguanine-DNA methyltransferase Ada;
80-166 3.04e-32

bifunctional DNA-binding transcriptional regulator/O6-methylguanine-DNA methyltransferase Ada;


Pssm-ID: 185333 [Multi-domain]  Cd Length: 353  Bit Score: 117.97  E-value: 3.04e-32
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537  80 LPTATAGTPFQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRK 159
Cdd:PRK15435 262 LPLDIRGTAFQQQVWQALRTIPCGETVSYQQLANAIGKPKAVRAVASACAANKLAIVIPCHRVVRGDGALSGYRWGVSRK 341


                 ....*..
gi 446879537 160 EWLLRHE 166
Cdd:PRK15435 342 AQLLRRE 348
AdaA COG2169
Methylphosphotriester-DNA--protein-cysteine methyltransferase (N-terminal fragment of Ada), ...
 11-166 1.68e-26

Methylphosphotriester-DNA--protein-cysteine methyltransferase (N-terminal fragment of Ada), contains Zn-binding and two AraC-type DNA-binding domains [Replication, recombination and repair];


Pssm-ID: 441772 [Multi-domain]  Cd Length: 358  Bit Score: 102.82  E-value: 1.68e-26
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537  11 TPLGMLAVICDEQFRLRAVEWEEYRHRMMQLLDihyRTEGYELREANNPGGLCQHLTDYFEGNLSVIDNLPTATAGTPFQ 90
Cdd:COG2169  197 CSLGLLLVAASARGVCAILLGDDPEALLRDLQD---RFPAAELIGGDAAFEQLVAEVVGFVEGPLLGLDLPLDLRGTAFQ 273

                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 446879537  91 REVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMTGYAGGVQRKEWLLRHE 166
Cdd:COG2169  274 QRVWQALRAIPAGETASYAEIAARIGAPKAVRAVAAACAANQLAVAIPCHRVVRADGALSGYRWGVERKRALLERE 349
Atl1 COG3695
Alkylated DNA nucleotide flippase Atl1, participates in nucleotide excision repair, Ada-like ...
 87-167 2.47e-22

Alkylated DNA nucleotide flippase Atl1, participates in nucleotide excision repair, Ada-like DNA-binding domain [Transcription];


Pssm-ID: 442910  Cd Length: 104  Bit Score: 85.62  E-value: 2.47e-22
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537  87 TPFQREVWQVLRTIPCGQVMHYGQLAEKLGRPGAARAVGAANGSNPISIVVPCHRVIGRNGTMT-GYAGGVQRKEWLLRH 165
Cdd:COG3695    4 EEFYERVYEVVAQIPPGRVATYGDIAALAGLPRGARQVGRALRALPEGSDLPWHRVVNADGRLSpGHAGGAEEQRELLEA 83


                 ..
gi 446879537 166 EG 167
Cdd:COG3695   84 EG 85
PRK03887 PRK03887
methylated-DNA--protein-cysteine methyltransferase; Provisional
 87-167 4.79e-15

methylated-DNA--protein-cysteine methyltransferase; Provisional


Pssm-ID: 167628 [Multi-domain]  Cd Length: 175  Bit Score: 68.99  E-value: 4.79e-15
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537  87 TPFQREVWQVL-RTIPCGQVMHYGQLAEKLGRpgAARAVGAANGSNPISIVVPCHRVIGRNGTMTgYAGGVQRKEWLLRH 165
Cdd:PRK03887  91 TPFERKVYEWLtKNVKRGEVITYGELAKALNT--SPRAVGGAMKRNPYPIIVPCHRVVGRKNPGL-YTPKPEYKKFLLEV 167


                 ..
gi 446879537 166 EG 167
Cdd:PRK03887 168 EG 169
Methyltransf_1N pfam02870
6-O-methylguanine DNA methyltransferase, ribonuclease-like domain; This entry represents the ...
 3-84 1.23e-09

6-O-methylguanine DNA methyltransferase, ribonuclease-like domain; This entry represents the N-terminal ribonuclease-like domain associated with 6-O-methylguanine DNA methyltransferase activity. The repair of DNA containing O6-alkylated guanine is carried out by DNA-[protein]-cysteine S-methyltransferase (also known as O-6-methylguanine-DNA-alkyltransferase)


Pssm-ID: 397139 [Multi-domain]  Cd Length: 77  Bit Score: 51.98  E-value: 1.23e-09
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 446879537    3 TLLEDKIATPLGMLAVICDEQFrLRAVEWEEYRHRMM-QLLDIHYRTEgyelrEANNPGGLCQHLTDYFEGNLSVIDNLP 81
Cdd:pfam02870   1 ALYYTLIDSPLGRLLLAGDERG-LTAIDFLDKDYALRkELPKVLPQPE-----LLPALALLVQALEEYFAGELKPEFTLP 74


                  ...
gi 446879537   82 TAT 84
Cdd:pfam02870  75 LDQ 77
 
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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