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Crystal Structure of Riboflavin Kinase

Source organism: Homo sapiens
Biochemical function: metal ion binding
Biological process: reactive oxygen species metabolic process
Cellular component: cytosol

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EC 2.7.1.26: Riboflavin kinase

Reaction catalysed:
ATP + riboflavin = ADP + FMN
Systematic name:
ATP:riboflavin 5'-phosphotransferase
Alternative Name(s):
  • FK
  • Flavokinase
  • RFK
  • Riboflavin kinase (phosphorylating)
  • Riboflavine kinase

GO terms

Sequence family

Pfam Protein family (Pfam)
PF01687
Domain description: Riboflavin kinase
Occurring in:
  1. Riboflavin kinase
The deposited structure of PDB entry 1nb9 contains 1 copy of Pfam domain PF01687 (Riboflavin kinase) in Riboflavin kinase. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR015865
Domain description: Riboflavin kinase domain, bacterial/eukaryotic
Occurring in:
  1. Riboflavin kinase
IPR023465
Domain description: Riboflavin kinase domain superfamily
Occurring in:
  1. Riboflavin kinase
IPR023468
Domain description: Riboflavin kinase
Occurring in:
  1. Riboflavin kinase

Structure domain

CATH CATH domain
2.40.30.30
Class: Mainly Beta
Architecture: Beta Barrel
Topology: Elongation Factor Tu (Ef-tu); domain 3
Homology: Riboflavin kinase-like
Occurring in:
  1. Riboflavin kinase
The deposited structure of PDB entry 1nb9 contains 1 copy of CATH domain 2.40.30.30 (Elongation Factor Tu (Ef-tu); domain 3) in Riboflavin kinase. Showing 1 copy in chain A.
SCOP SCOP annotation
82115
Class: All beta proteins
Fold: Reductase/isomerase/elongation factor common domain
Superfamily: Riboflavin kinase-like
Occurring in:
  1. Riboflavin kinase
The deposited structure of PDB entry 1nb9 contains 1 copy of SCOP domain 82115 (ATP-dependent riboflavin kinase-like) in Riboflavin kinase. Showing 1 copy in chain A.

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