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UniProtKB/Swiss-Prot entry Q8PY44


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name OGT_METMA
Primary accession number Q8PY44
Secondary accession numbers None
Integrated into Swiss-Prot on May 10, 2004
Sequence was last modified on October 1, 2002 (Sequence version 1)
Annotations were last modified on    July 22, 2008 (Entry version 38)
Name and origin of the protein
Protein name Methylated-DNA--protein-cysteine methyltransferase
Synonyms EC 2.1.1.63
6-O-methylguanine-DNA methyltransferase
MGMT
O-6-methylguanine-DNA-alkyltransferase
Gene name
Name: ogt
OrderedLocusNames: MM_1020
From
Methanosarcina mazei (Methanosarcina frisia) [TaxID: 2209] [HAMAP proteome]
Taxonomy Archaea; Euryarchaeota; Methanomicrobia; Methanosarcinales; Methanosarcinaceae; Methanosarcina.
Protein existence 3: Inferred from homology;
References
[1]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
STRAIN=ATCC BAA-159 / DSM 3647 / Goe1 / Go1 / JCM 11883 / OCM 88;
PubMed=12125824 [NCBI, ExPASy, EBI, Israel, Japan]
Deppenmeier U., Johann A., Hartsch T., Merkl R., Schmitz R.A., Martinez-Arias R., Henne A., Wiezer A., Baeumer S., Jacobi C., Brueggemann H., Lienard T., Christmann A., Boemecke M., Steckel S., Bhattacharyya A., Lykidis A., Overbeek R., Klenk H.-P., Gunsalus R.P., Fritz H.-J., Gottschalk G.;
"The genome of Methanosarcina mazei: evidence for lateral gene transfer between Bacteria and Archaea.";
J. Mol. Microbiol. Biotechnol. 4:453-461(2002).
Comments
  • FUNCTION: Involved in the cellular defense against the biological effects of O6-methylguanine (O6-MeG) in DNA. Repairs alkylated guanine in DNA by stoichiometrically transferring the alkyl group at the O-6 position to a cysteine residue in the enzyme. This is a suicide reaction: the enzyme is irreversibly inactivated (By similarity).
  • CATALYTIC ACTIVITY: DNA (containing 6-O-methylguanine) + protein L-cysteine = DNA (without 6-O-methylguanine) + protein S-methyl-L-cysteine.
  • SUBCELLULAR LOCATION: Cytoplasm (By similarity).
  • SIMILARITY: Belongs to the MGMT family.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
AE008384; AAM30716.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
RefSeq NP_633044.1; -.
3D structure databases
HSSP P06134; 1SFE. [HSSP ENTRY / SWISS-3DIMAGE / PDB]
ModBase Q8PY44.
Enzyme and pathway databases
BioCyc MMAZ192952:MM1020-MON; -.
Ontologies
GO
GO:0005737; Cellular component: cytoplasm (inferred from electronic annotation from HAMAP).
GO:0003908; Molecular function: methylated-DNA-[protein]-cysteine S-methyltransferase activity (inferred from electronic annotation from HAMAP).
GO:0006307; Biological process: DNA dealkylation (inferred from electronic annotation from HAMAP).
QuickGo view.
Family and domain databases
HAMAP MF_00772; -; 1.
PBIL [Tree]
InterPro IPR001497; MethylDNA_cys_MeTrfase_AS.
IPR014048; MethylDNA_cys_MeTrfase_DNA_bd.
IPR008332; MethylG_MeTrfase.
IPR011991; Wing_hlx_DNA_bd.
Graphical view of domain structure.
Gene3D G3DSA:1.10.10.10; Wing_hlx_DNA_bd; 1.
PANTHER PTHR10815; MethylDNA_cys_mtrans_DNA_bd; 1.
Pfam PF01035; DNA_binding_1; 1.
PF02870; Methyltransf_1N; 1.
Pfam graphical view of domain structure.
TIGRFAMs TIGR00589; ogt; 1.
PROSITE PS00374; MGMT; 1.
ProtoNet Q8PY44.
Genome annotation databases
GeneID 1479362; -.
GenomeReviews AE008384_GR; MM_1020.
KEGG mma:MM_1020; -.
NMPDR fig|192952.1.peg.1020; -.
Phylogenomic databases
HOGENOM Q8PY44; -.
Genome annotation databases
CMR Q8PY44; MM_1020.
Other
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
Complete proteome; Cytoplasm; DNA damage; DNA repair; Methyltransferase; Transferase.
Features
SEVIEWER logo Feature table viewer
KeyFrom   To Length Description FTId
CHAIN   1   158  158     Methylated-DNA--protein-cysteine methyltransferase. PRO_0000139379
ACT_SITE   126   126        Nucleophile; methyl group acceptor (By similarity). 
Sequence information
Length: 158 AA [This is the length of the unprocessed precursor] Molecular weight: 17996 Da [This is the MW of the unprocessed precursor] CRC64: C3E0988D360F019B [This is a checksum on the sequence]
        10         20         30         40         50         60 
MYYHIIKSPI YPILLAGDEK GLKHLIFLKD ERKAKIPNDW VENKDFFREV SNQLEAYFSG 

        70         80         90        100        110        120 
KLKTFDVKLA PQGTEFQKSV WKALCEIPCG ETRTYGEIAK RIQNPKAYRA VGLANNRNPI 

       130        140        150 
AIIVPCHRVI GANGKLTGYA SGLDIKEFLL KLEENNLK 

Q8PY44 in FASTA format

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