1NB0

Crystal Structure of Human Riboflavin Kinase

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1nb0a_	All beta proteins	Reductase/isomerase/elongation factor common domain	Riboflavin kinase-like	ATP-dependent riboflavin kinase-like	Riboflavin kinase	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Riboflavin kinase-like	8033193	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)
A	Flavokinase	e1nb0A1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: Flavokinase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.30.30	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	PF01687	Riboflavin kinase (Flavokinase)	Riboflavin kinase	This family represents the C-terminal region of the bifunctional riboflavin biosynthesis protein known as RibC in Bacillus subtilis. The RibC protein from Bacillus subtilis has both flavokinase and flavin adenine dinucleotide synthetase (FAD-synthet ...	This family represents the C-terminal region of the bifunctional riboflavin biosynthesis protein known as RibC in Bacillus subtilis. The RibC protein from Bacillus subtilis has both flavokinase and flavin adenine dinucleotide synthetase (FAD-synthetase) activities. RibC plays an essential role in the flavin metabolism [1]. This domain is thought to have kinase activity [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	hypothetical protein FLJ11149	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound 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 cation binding metal ion binding	regulation of molecular function positive regulation of molecular function positive regulation of NAD(P)H oxidase activity regulation of catalytic activity regulation of NAD(P)H oxidase activity biological regulation positive regulation of catalytic activity regulation of oxidoreductase activity positive regulation of oxidoreductase activity flavin-containing compound metabolic process small molecule metabolic process metabolic process water-soluble vitamin metabolic process riboflavin metabolic process regulation of molecular function positive regulation of molecular function positive regulation of NAD(P)H oxidase activity regulation of catalytic activity regulation of NAD(P)H oxidase activity biological regulation positive regulation of catalytic activity regulation of oxidoreductase activity positive regulation of oxidoreductase activity flavin-containing compound metabolic process small molecule metabolic process metabolic process water-soluble vitamin metabolic process riboflavin metabolic process vitamin metabolic process nucleoside phosphate metabolic process cellular metabolic process nucleotide biosynthetic process flavin adenine dinucleotide biosynthetic process flavin adenine dinucleotide metabolic process primary metabolic process nucleotide metabolic process nucleobase-containing compound biosynthetic process nucleobase-containing compound metabolic process flavin-containing compound biosynthetic process biosynthetic process organophosphate metabolic process nucleobase-containing small molecule metabolic process organophosphate biosynthetic process phosphate-containing compound metabolic process nucleoside phosphate biosynthetic process cellular process phosphorus metabolic process reactive oxygen species metabolic process apoptotic process cell death programmed cell death ribose phosphate metabolic process carbohydrate derivative metabolic process ribonucleotide biosynthetic process ribonucleotide metabolic process ribonucleoside monophosphate metabolic process FMN metabolic process ribose phosphate biosynthetic process nucleoside monophosphate metabolic process carbohydrate derivative biosynthetic process nucleoside monophosphate biosynthetic process FMN biosynthetic process ribonucleoside monophosphate biosynthetic process water-soluble vitamin biosynthetic process small molecule biosynthetic process cellular biosynthetic process vitamin biosynthetic process riboflavin biosynthetic process	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR015865	Riboflavin kinase domain, bacterial/eukaryotic	Domain
A	IPR023465	Riboflavin kinase domain superfamily	Homologous Superfamily
A	IPR023468	Riboflavin kinase	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q969G6	prostate cancer Alzheimer disease large cell medulloblastoma malignant glioma ovarian cancer astrocytic tumor lung cancer medulloblastoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia Prostatic Neoplasms glioblastoma lung carcinoma oligodendroglioma plasma cell myeloma psoriasis

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.