Annotations: 4WCX

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	BATS	e4wcxA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: BATS	ECOD (1.6)
B [auth C]	BATS	e4wcxC1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: BATS	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
A, B [auth C]	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
A, B [auth C]	PF06968	Biotin and Thiamin Synthesis associated domain (BATS)	Biotin and Thiamin Synthesis associated domain	Biotin synthase (BioB), EC:2.8.1.6 , catalyses the last step of the biotin biosynthetic pathway. The reaction consists in the introduction of a sulphur atom into dethiobiotin. BioB functions as a homodimer [1]. Thiamin synthesis if a complex proces ...	Biotin synthase (BioB), EC:2.8.1.6 , catalyses the last step of the biotin biosynthetic pathway. The reaction consists in the introduction of a sulphur atom into dethiobiotin. BioB functions as a homodimer [1]. Thiamin synthesis if a complex process involving at least six gene products (ThiFSGH, ThiI and ThiJ). Two of the proteins required for the biosynthesis of the thiazole moiety of thiamine (vitamin B(1)) are ThiG and ThiH (this family) and form a heterodimer[2]. Both of these reactions are thought of involve the binding of co-factors, and both function as dimers [1,2]. This domain therefore may be involved in co-factor binding or dimerisation (Finn, RD personal observation).	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B [auth C]	Biotin and thiamin synthesis associated	catalytic activity iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding cation binding ion binding metal ion binding	organic substance metabolic process organonitrogen compound metabolic process biosynthetic process organonitrogen compound biosynthetic process organic substance biosynthetic process metabolic process organic cyclic compound metabolic process organic cyclic compound biosynthetic process water-soluble vitamin biosynthetic process small molecule biosynthetic process cellular biosynthetic process cellular metabolic process vitamin biosynthetic process vitamin metabolic process organic substance metabolic process organonitrogen compound metabolic process biosynthetic process organonitrogen compound biosynthetic process organic substance biosynthetic process metabolic process organic cyclic compound metabolic process organic cyclic compound biosynthetic process water-soluble vitamin biosynthetic process small molecule biosynthetic process cellular biosynthetic process cellular metabolic process vitamin biosynthetic process vitamin metabolic process small molecule metabolic process cellular process water-soluble vitamin metabolic process sulfur compound biosynthetic process sulfur compound metabolic process	-

Chains	Accession	Name	Type
A, B [auth C]	IPR007197	Radical SAM	Domain
A, B [auth C]	IPR034428	ThiH/NocL/HydG-like	Family
A, B [auth C]	IPR006638	Elp3/MiaA/NifB-like, radical SAM core domain	Domain
A, B [auth C]	IPR024007	[FeFe]-hydrogenase maturation HydG, radical SAM	Family
A, B [auth C]	IPR013785	Aldolase-type TIM barrel	Homologous Superfamily
A, B [auth C]	IPR010722	Biotin and thiamin synthesis-associated domain	Domain