4QDK | pdb_00004qdk

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)
B	SCOP2B Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8090814	3000118	SCOP2B (2022-06-29)
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)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Acetyltransf_16	e4qdkB1	A: alpha bundles	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Acetyltransf_16	ECOD (develop294)
A	GRAM	e4qdkA1	A: alpha bundles	X: avirulence protein AvrPiz-t homologs	H: avirulence protein AvrPiz-t homologs	T: avirulence protein AvrPiz-t homologs	F: GRAM	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.