Annotations: 2E0N

Crystal structure of CbiL in complex with S-adenosylhomocysteine, a methyltransferase involved in anaerobic vitamin B12 biosynthesis

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e2e0nA1	A: alpha arrays	X: F-type ATP synthase subunit b	H: Bacterial cell wall synthesis membrane enzyme MraY-related	T: Bacterial cell wall synthesis membrane enzyme MraY-related	F:	ECOD (v295.2)
B		e2e0nB1	A: alpha arrays	X: F-type ATP synthase subunit b	H: Bacterial cell wall synthesis membrane enzyme MraY-related	T: Bacterial cell wall synthesis membrane enzyme MraY-related	F:	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.1010.10	Alpha Beta	3-Layer(aba) Sandwich	Cobalt-precorrin-4 Transmethylase	domain 1	CATH (4.3.0)
A	3.30.950.10	Alpha Beta	2-Layer Sandwich	Methyltransferase, Cobalt-precorrin-4 Transmethylase	Domain 2	CATH (4.3.0)
B	3.40.1010.10	Alpha Beta	3-Layer(aba) Sandwich	Cobalt-precorrin-4 Transmethylase	domain 1	CATH (4.3.0)
B	3.30.950.10	Alpha Beta	2-Layer Sandwich	Methyltransferase, Cobalt-precorrin-4 Transmethylase	Domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00590	Tetrapyrrole (Corrin/Porphyrin) Methylases (TP_methylase)	Tetrapyrrole (Corrin/Porphyrin) Methylases	This family uses S-AdoMet in the methylation of diverse substrates. This family includes a related group of bacterial proteins of unknown function, including Swiss:P45528. This family includes the methylase Dipthine synthase.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Precorrin-2 C20-methyltransferase	transferase activity, transferring one-carbon groups transferase activity methyltransferase activity precorrin-2 C20-methyltransferase activity S-adenosylmethionine-dependent methyltransferase activity catalytic activity	methylation metabolic process cellular process cobalamin metabolic process cobalamin biosynthetic process water-soluble vitamin biosynthetic process tetrapyrrole metabolic process small molecule biosynthetic process vitamin biosynthetic process vitamin metabolic process tetrapyrrole biosynthetic process biosynthetic process small molecule metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR035996	Tetrapyrrole methylase superfamily	Homologous Superfamily
A, B	IPR014777	Tetrapyrrole methylase, subdomain 1	Homologous Superfamily
A, B	IPR003043	Uroporphiryn-III C-methyltransferase, conserved site	Conserved Site
A, B	IPR014776	Tetrapyrrole methylase, subdomain 2	Homologous Superfamily
A, B	IPR012382	Precorrin-2 C(20)-methyltransferase	Family
A, B	IPR000878	Tetrapyrrole methylase	Domain

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.