1G57 | pdb_00001g57

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1g57b_	Alpha and beta proteins (a+b)	YrdC/RibB	YrdC/RibB	3,4-dihydroxy-2-butanone 4-phosphate synthase, DHBP synthase, RibB	3,4-dihydroxy-2-butanone 4-phosphate synthase, DHBP synthase, RibB	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
A	d1g57a_	Alpha and beta proteins (a+b)	YrdC/RibB	YrdC/RibB	3,4-dihydroxy-2-butanone 4-phosphate synthase, DHBP synthase, RibB	3,4-dihydroxy-2-butanone 4-phosphate synthase, DHBP synthase, RibB	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	YrdC/RibB-like	8004472	3000166	SCOP2B (2022-06-29)
A	SCOP2 Family	RibB-like	8004471	4000387	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	YrdC/RibB-like	8004472	3000166	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Biotin_carb_C	e1g57B1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: Biotin_carb_C	ECOD (v294.1)
A	Biotin_carb_C	e1g57A1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: Biotin_carb_C	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.90.870.10	Alpha Beta	Alpha-Beta Complex	DHBP synthase	DHBP synthase	CATH (4.3.0)
A	3.90.870.10	Alpha Beta	Alpha-Beta Complex	DHBP synthase	DHBP synthase	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A, B	PF00926	3,4-dihydroxy-2-butanone 4-phosphate synthase (DHBP_synthase)	3,4-dihydroxy-2-butanone 4-phosphate synthase	-	Family

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	3,4-DIHYDROXY-2-BUTANONE 4-PHOSPHATE SYNTHASE	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding manganese ion binding transition metal ion binding identical protein binding protein binding protein homodimerization activity protein dimerization activity lyase activity catalytic activity cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding manganese ion binding transition metal ion binding identical protein binding protein binding protein homodimerization activity protein dimerization activity lyase activity catalytic activity 3,4-dihydroxy-2-butanone-4-phosphate synthase activity carbon-carbon lyase activity	water-soluble vitamin biosynthetic process small molecule biosynthetic process flavin-containing compound metabolic process vitamin biosynthetic process riboflavin biosynthetic process vitamin metabolic process flavin-containing compound biosynthetic process biosynthetic process metabolic process cellular process small molecule metabolic process riboflavin metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane

Chains	Accession	Name	Type
A, B	IPR017945	DHBP synthase RibB-like alpha/beta domain superfamily	Homologous Superfamily
A, B	IPR000422	3,4-dihydroxy-2-butanone 4-phosphate synthase, RibB	Family

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.