Annotations: 3ZUG

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Riboflavin kinase-like	8067083	3000067	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Riboflavin kinase-like	8067083	3000067	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Rrf2	e3zugB1	A: a/b three-layered sandwiches	X: beta-Grasp	H: HTH	T: winged helix domain	F: Rrf2	ECOD (v294.1)
A	HATPase_c	e3zugA1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: SH3	T: SH3	F: HATPase_c	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.620	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HUPs	CATH (4.3.0)
B	2.40.30.30	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
A	3.40.50.620	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HUPs	CATH (4.3.0)
A	2.40.30.30	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	RIBOFLAVIN BIOSYNTHESIS PROTEIN RIBF	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding riboflavin kinase activity kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups adenylyltransferase activity FMN adenylyltransferase activity nucleotidyltransferase activity	ribose phosphate metabolic process nucleotide biosynthetic process flavin-containing compound metabolic process carbohydrate derivative metabolic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process small molecule metabolic process FMN metabolic process phosphorus metabolic process ribose phosphate biosynthetic process nucleoside monophosphate metabolic process ribose phosphate metabolic process nucleotide biosynthetic process flavin-containing compound metabolic process carbohydrate derivative metabolic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process small molecule metabolic process FMN metabolic process phosphorus metabolic process ribose phosphate biosynthetic process nucleoside monophosphate metabolic process nucleoside phosphate metabolic process carbohydrate derivative biosynthetic process primary metabolic process nucleobase-containing compound biosynthetic process nucleotide metabolic process nucleoside monophosphate biosynthetic process flavin-containing compound biosynthetic process biosynthetic process FMN biosynthetic process organophosphate metabolic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process metabolic process cellular process ribonucleoside monophosphate biosynthetic process FAD biosynthetic process FAD metabolic process flavin adenine dinucleotide biosynthetic process flavin adenine dinucleotide metabolic process water-soluble vitamin biosynthetic process small molecule biosynthetic process vitamin biosynthetic process riboflavin biosynthetic process vitamin metabolic process riboflavin metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR015865	Riboflavin kinase domain, bacterial/eukaryotic	Domain
A, B	IPR023465	Riboflavin kinase domain superfamily	Homologous Superfamily
A, B	IPR023468	Riboflavin kinase	Family
A, B	IPR002606	Riboflavin kinase, bacterial	Family
A, B	IPR015864	FAD synthetase	Domain
A, B	IPR014729	Rossmann-like alpha/beta/alpha sandwich fold	Homologous Superfamily

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.