RIFK_PICST
ID RIFK_PICST Reviewed; 178 AA.
AC A3M0C9;
DT 11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT 24-JUL-2007, sequence version 2.
DT 03-AUG-2022, entry version 80.
DE RecName: Full=Riboflavin kinase;
DE EC=2.7.1.26;
DE AltName: Full=Flavin mononucleotide kinase 1;
GN Name=FMN1; ORFNames=PICST_50354;
OS Scheffersomyces stipitis (strain ATCC 58785 / CBS 6054 / NBRC 10063 / NRRL
OS Y-11545) (Yeast) (Pichia stipitis).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Debaryomycetaceae; Scheffersomyces.
OX NCBI_TaxID=322104;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 58785 / CBS 6054 / NBRC 10063 / NRRL Y-11545;
RX PubMed=17334359; DOI=10.1038/nbt1290;
RA Jeffries T.W., Grigoriev I.V., Grimwood J., Laplaza J.M., Aerts A.,
RA Salamov A., Schmutz J., Lindquist E., Dehal P., Shapiro H., Jin Y.-S.,
RA Passoth V., Richardson P.M.;
RT "Genome sequence of the lignocellulose-bioconverting and xylose-fermenting
RT yeast Pichia stipitis.";
RL Nat. Biotechnol. 25:319-326(2007).
CC -!- FUNCTION: Catalyzes the phosphorylation of riboflavin (vitamin B2) to
CC form flavin mononucleotide (FMN) coenzyme. {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + riboflavin = ADP + FMN + H(+); Xref=Rhea:RHEA:14357,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:30616, ChEBI:CHEBI:57986,
CC ChEBI:CHEBI:58210, ChEBI:CHEBI:456216; EC=2.7.1.26;
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000250};
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
CC Note=Zinc or magnesium. {ECO:0000250};
CC -!- PATHWAY: Cofactor biosynthesis; FMN biosynthesis; FMN from riboflavin
CC (ATP route): step 1/1.
CC -!- SIMILARITY: Belongs to the flavokinase family. {ECO:0000305}.
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DR EMBL; CP000502; ABN68689.2; -; Genomic_DNA.
DR RefSeq; XP_001386718.2; XM_001386681.1.
DR AlphaFoldDB; A3M0C9; -.
DR SMR; A3M0C9; -.
DR STRING; 4924.XP_001386718.2; -.
DR PRIDE; A3M0C9; -.
DR EnsemblFungi; ABN68689; ABN68689; PICST_50354.
DR GeneID; 4841164; -.
DR KEGG; pic:PICST_50354; -.
DR eggNOG; KOG3110; Eukaryota.
DR HOGENOM; CLU_048437_3_2_1; -.
DR InParanoid; A3M0C9; -.
DR OMA; EVYKMVL; -.
DR OrthoDB; 1534271at2759; -.
DR UniPathway; UPA00276; UER00406.
DR Proteomes; UP000002258; Chromosome 8.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0008531; F:riboflavin kinase activity; IEA:UniProtKB-EC.
DR GO; GO:0009398; P:FMN biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR GO; GO:0009231; P:riboflavin biosynthetic process; IEA:InterPro.
DR Gene3D; 2.40.30.30; -; 1.
DR InterPro; IPR023468; Riboflavin_kinase.
DR InterPro; IPR015865; Riboflavin_kinase_bac/euk.
DR InterPro; IPR023465; Riboflavin_kinase_dom_sf.
DR PANTHER; PTHR22749; PTHR22749; 1.
DR Pfam; PF01687; Flavokinase; 1.
DR SMART; SM00904; Flavokinase; 1.
DR SUPFAM; SSF82114; SSF82114; 1.
PE 3: Inferred from homology;
KW ATP-binding; Flavoprotein; FMN; Kinase; Magnesium; Metal-binding;
KW Nucleotide-binding; Reference proteome; Transferase; Zinc.
FT CHAIN 1..178
FT /note="Riboflavin kinase"
FT /id="PRO_0000301849"
FT ACT_SITE 116
FT /note="Nucleophile"
FT /evidence="ECO:0000250"
FT BINDING 39
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250|UniProtKB:Q969G6"
FT BINDING 41
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250|UniProtKB:Q969G6"
SQ SEQUENCE 178 AA; 20327 MW; 4D63EA7A0ABCDB2F CRC64;
MARPDTVIPD KPESPYPIVQ DSVVVSGFGR GSSELGIPTA NIPINDDLNQ LETGIYYGWC
QLKPCTLPDE CKTRTNGREV IYNHGKNLRN DDLKVLPMVM SIGWNPFYHL KEKAAEVHIM
HKFDDFFYGA QIKFNVLGYI RPELDYTTKE ALIEDINLDI KIALEALDRD AYQTYKDL
