Annotations: 4FXU

Crystallographic structure of trimeric riboflavin synthase from Brucella abortus

External Resource: Annotation

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

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C	d4fxuc1	All beta proteins	Reductase/isomerase/elongation factor common domain	Riboflavin synthase domain-like	automated matches	automated matches	(Brucella abortus ) [TaxId: 235 ],	SCOPe (2.08)
B	d4fxub1	All beta proteins	Reductase/isomerase/elongation factor common domain	Riboflavin synthase domain-like	automated matches	automated matches	(Brucella abortus ) [TaxId: 235 ],	SCOPe (2.08)
A	d4fxua1	All beta proteins	Reductase/isomerase/elongation factor common domain	Riboflavin synthase domain-like	automated matches	automated matches	(Brucella abortus ) [TaxId: 235 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C	V-set	e4fxuC3	A: alpha arrays	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: V-set	ECOD (v295.2)
B	Glyoxalase	e4fxuB5	A: alpha arrays	X: Fusion glycoprotein F2	H: Fusion glycoprotein F2	T: Fusion glycoprotein F2	F: Glyoxalase	ECOD (v295.2)
A	V-set	e4fxuA3	A: alpha arrays	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: V-set	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	2.40.30.20	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
B	2.40.30.20	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
A	2.40.30.20	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00677	Lumazine binding domain (Lum_binding)	Lumazine binding domain	This domain binds to derivatives of lumazine in some proteins. Some proteins have lost the residues involved in binding lumazine.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Riboflavin synthase subunit alpha	binding ion binding anion binding heterocyclic compound binding riboflavin binding small molecule binding riboflavin synthase activity transferase activity transferase activity, transferring alkyl or aryl (other than methyl) groups catalytic activity	protein-containing complex organization protein trimerization cellular component organization cellular component biogenesis cellular component assembly protein homotrimerization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular process cellular component organization or biogenesis water-soluble vitamin biosynthetic process small molecule biosynthetic process flavin-containing compound metabolic process protein-containing complex organization protein trimerization cellular component organization cellular component biogenesis cellular component assembly protein homotrimerization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular process cellular component organization or biogenesis 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 small molecule metabolic process riboflavin metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR017938	Riboflavin synthase-like beta-barrel	Homologous Superfamily
A, B, C	IPR026017	Lumazine-binding domain	Domain
A, B, C	IPR001783	Lumazine-binding protein	Family
A, B, C	IPR023366	ATP synthase subunit alpha, N-terminal domain-like superfamily	Homologous Superfamily

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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.