5UL3 | pdb_00005ul3

Structure of Cobalamin-dependent S-adenosylmethionine radical enzyme OxsB with aqua-cobalamin bound

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	UNK_F_TYPE	e5ul3A4	A: alpha bundles	X: Bromodomain-like	H: OxsB C-terminal helix bundle (From Topology)	T: OxsB C-terminal helix bundle	F: UNK_F_TYPE	ECOD (1.6)
A	UNK_F_TYPE	e5ul3A2	A: a+b two layers	X: OxsB N-terminal domain (From Topology)	H: OxsB N-terminal domain (From Topology)	T: OxsB N-terminal domain	F: UNK_F_TYPE	ECOD (1.6)
A	Radical_SAM	e5ul3A1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Radical_SAM	ECOD (1.6)
A	B12-binding	e5ul3A3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: CheY-like	F: B12-binding	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.280	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Cobalamin-binding domain	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF04055	Radical SAM superfamily (Radical_SAM)	Radical SAM superfamily	Radical SAM proteins catalyse diverse reactions, including unusual methylations, isomerisation, sulphur insertion, ring formation, anaerobic oxidation and protein radical formation.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	OxsB protein	isomerase activity catalytic activity vitamin binding binding cobalamin binding tetrapyrrole binding heterocyclic compound binding small molecule binding iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding cation binding ion binding metal ion binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR007197	Radical SAM	Domain
A	IPR034532	OxsB-like	Family
A	IPR051198	Tetrapyrrole and Bacteriochlorophyll Biosynthesis Methyltransferases	Family
A	IPR006638	Elp3/MiaA/NifB-like, radical SAM core domain	Domain
A	IPR023404	Radical SAM, alpha/beta horseshoe	Homologous Superfamily
A	IPR006158	Cobalamin (vitamin B12)-binding domain	Domain

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.