4ZYG

Crystal structure of methylated Sulfolobus solfataricus O6-methylguanine methyltransferase

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF01035	e4zygA1	A: alpha arrays	X: HTH	H: HTH	T: Methylated DNA-protein cysteine methyltransferase-C	F: PF01035	ECOD (1.6)
A	PF02870	e4zygA2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Methylated DNA-protein cysteine methyltransferase domain (From Topology)	T: Methylated DNA-protein cysteine methyltransferase domain	F: PF02870	ECOD (1.6)
B	PF01035	e4zygB2	A: alpha arrays	X: HTH	H: HTH	T: Methylated DNA-protein cysteine methyltransferase-C	F: PF01035	ECOD (1.6)
B	PF02870	e4zygB1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Methylated DNA-protein cysteine methyltransferase domain (From Topology)	T: Methylated DNA-protein cysteine methyltransferase domain	F: PF02870	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.160.70	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain	Methylated DNA-protein cysteine methyltransferase domain	CATH (4.3.0)
A	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
B	3.30.160.70	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain	Methylated DNA-protein cysteine methyltransferase domain	CATH (4.3.0)
B	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01035	6-O-methylguanine DNA methyltransferase, DNA binding domain (DNA_binding_1)	6-O-methylguanine DNA methyltransferase, DNA binding domain	This is the C-terminal DNA-binding domain of 6-O-methylguanine-DNA methyltransferases [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Methylated-DNA--protein-cysteine methyltransferase	catalytic activity, acting on a protein transferase activity, transferring one-carbon groups S-methyltransferase activity protein methyltransferase activity methylated-DNA-[protein]-cysteine S-methyltransferase activity transferase activity methyltransferase activity catalytic activity	methylation metabolic process cellular response to stimulus response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process DNA alkylation repair cellular response to stress DNA damage response response to stress methylation metabolic process cellular response to stimulus response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process DNA alkylation repair cellular response to stress DNA damage response response to stress cellular process macromolecule metabolic process DNA repair	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001497	Methylated-DNA-[protein]-cysteine S-methyltransferase, active site	Active Site
A, B	IPR036217	Methylated DNA-protein cysteine methyltransferase, DNA binding domain	Homologous Superfamily
A, B	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR036631	Methylated DNA-protein cysteine methyltransferase domain superfamily	Homologous Superfamily
A, B	IPR023546	Methylated-DNA--protein-cysteine methyltransferase	Family
A, B	IPR014048	Methylated-DNA-[protein]-cysteine S-methyltransferase, DNA binding	Domain

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A, B	SMC	Parent Component: CYS RESID: AA0234 PSI-MOD : S-methyl-L-cysteine MOD:00239

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.