RFK, Official Symbol RFKprovided by HGNC Official Full Name riboflavin kinaseprovided by HGNC Primary source HGNC:HGNC:30324 See related Ensembl:ENSG00000135002 MIM:613010; AllianceGenome:HGNC:30324 Gene type protein coding RefSeq status VALIDATED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as RIFK Summary Riboflavin kinase (RFK; EC 2.7.1.26) is an essential enzyme that catalyzes the phosphorylation of riboflavin (vitamin B2) to form flavin mononucleotide (FMN), an obligatory step in vitamin B2 utilization and flavin cofactor synthesis (Karthikeyan et al., 2003 [PubMed 12623014]).[supplied by OMIM, Nov 2009] Expression Ubiquitous expression in colon (RPKM 20.2), duodenum (RPKM 17.4) and 25 other tissues See more Orthologs mouse all