Annotations: 4QDK

Crystal structure of magnesium protoporphyrin IX methyltransferase (ChlM) from Synechocystis PCC 6803 with bound SAH

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Magnesium-protoporphyrin O-methyltransferase-like	8049073	4006333	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8090814	3000118	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8090814	3000118	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	GRAM	e4qdkA1	A: beta barrels	X: avirulence protein AvrPiz-t homologs	H: avirulence protein AvrPiz-t homologs	T: avirulence protein AvrPiz-t homologs	F: GRAM	ECOD (v294.2)
B	Acetyltransf_16	e4qdkB1	A: beta barrels	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Acetyltransf_16	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)
B	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF07109	Magnesium-protoporphyrin IX methyltransferase C-terminus (Mg-por_mtran_C)	Magnesium-protoporphyrin IX methyltransferase C-terminus	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Magnesium-protoporphyrin O-methyltransferase	magnesium protoporphyrin IX methyltransferase activity O-methyltransferase activity transferase activity, transferring one-carbon groups transferase activity methyltransferase activity catalytic activity S-adenosylmethionine-dependent methyltransferase activity	methylation metabolic process cellular process pigment metabolic process porphyrin-containing compound biosynthetic process tetrapyrrole metabolic process chlorophyll metabolic process pigment biosynthetic process light-independent chlorophyll biosynthetic process tetrapyrrole biosynthetic process biosynthetic process porphyrin-containing compound metabolic process chlorophyll biosynthetic process photosynthesis	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR010251	Magnesium-protoporphyrin IX methyltransferase	Family
A, B	IPR010940	Magnesium-protoporphyrin IX methyltransferase, C-terminal	Domain
A, B	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily

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