ID PDXH_PROMM Reviewed; 222 AA. AC Q7V3Y6; DT 24-JAN-2006, integrated into UniProtKB/Swiss-Prot. DT 01-OCT-2003, sequence version 1. DT 27-MAR-2024, entry version 117. DE RecName: Full=Pyridoxine/pyridoxamine 5'-phosphate oxidase {ECO:0000255|HAMAP-Rule:MF_01629}; DE EC=1.4.3.5 {ECO:0000255|HAMAP-Rule:MF_01629}; DE AltName: Full=PNP/PMP oxidase {ECO:0000255|HAMAP-Rule:MF_01629}; DE Short=PNPOx {ECO:0000255|HAMAP-Rule:MF_01629}; DE AltName: Full=Pyridoxal 5'-phosphate synthase {ECO:0000255|HAMAP-Rule:MF_01629}; GN Name=pdxH {ECO:0000255|HAMAP-Rule:MF_01629}; GN OrderedLocusNames=PMT_2199; OS Prochlorococcus marinus (strain MIT 9313). OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales; OC Prochlorococcaceae; Prochlorococcus. OX NCBI_TaxID=74547; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=MIT 9313; RX PubMed=12917642; DOI=10.1038/nature01947; RA Rocap G., Larimer F.W., Lamerdin J.E., Malfatti S., Chain P., Ahlgren N.A., RA Arellano A., Coleman M., Hauser L., Hess W.R., Johnson Z.I., Land M.L., RA Lindell D., Post A.F., Regala W., Shah M., Shaw S.L., Steglich C., RA Sullivan M.B., Ting C.S., Tolonen A., Webb E.A., Zinser E.R., RA Chisholm S.W.; RT "Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche RT differentiation."; RL Nature 424:1042-1047(2003). CC -!- FUNCTION: Catalyzes the oxidation of either pyridoxine 5'-phosphate CC (PNP) or pyridoxamine 5'-phosphate (PMP) into pyridoxal 5'-phosphate CC (PLP). {ECO:0000255|HAMAP-Rule:MF_01629}. CC -!- CATALYTIC ACTIVITY: CC Reaction=H2O + O2 + pyridoxamine 5'-phosphate = H2O2 + NH4(+) + CC pyridoxal 5'-phosphate; Xref=Rhea:RHEA:15817, ChEBI:CHEBI:15377, CC ChEBI:CHEBI:15379, ChEBI:CHEBI:16240, ChEBI:CHEBI:28938, CC ChEBI:CHEBI:58451, ChEBI:CHEBI:597326; EC=1.4.3.5; CC Evidence={ECO:0000255|HAMAP-Rule:MF_01629}; CC -!- CATALYTIC ACTIVITY: CC Reaction=O2 + pyridoxine 5'-phosphate = H2O2 + pyridoxal 5'-phosphate; CC Xref=Rhea:RHEA:15149, ChEBI:CHEBI:15379, ChEBI:CHEBI:16240, CC ChEBI:CHEBI:58589, ChEBI:CHEBI:597326; EC=1.4.3.5; CC Evidence={ECO:0000255|HAMAP-Rule:MF_01629}; CC -!- COFACTOR: CC Name=FMN; Xref=ChEBI:CHEBI:58210; Evidence={ECO:0000255|HAMAP- CC Rule:MF_01629}; CC Note=Binds 1 FMN per subunit. {ECO:0000255|HAMAP-Rule:MF_01629}; CC -!- PATHWAY: Cofactor metabolism; pyridoxal 5'-phosphate salvage; pyridoxal CC 5'-phosphate from pyridoxamine 5'-phosphate: step 1/1. CC {ECO:0000255|HAMAP-Rule:MF_01629}. CC -!- PATHWAY: Cofactor metabolism; pyridoxal 5'-phosphate salvage; pyridoxal CC 5'-phosphate from pyridoxine 5'-phosphate: step 1/1. CC {ECO:0000255|HAMAP-Rule:MF_01629}. CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01629}. CC -!- SIMILARITY: Belongs to the pyridoxamine 5'-phosphate oxidase family. CC {ECO:0000255|HAMAP-Rule:MF_01629}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; BX548175; CAE22373.1; -; Genomic_DNA. DR RefSeq; WP_011131563.1; NC_005071.1. DR AlphaFoldDB; Q7V3Y6; -. DR SMR; Q7V3Y6; -. DR KEGG; pmt:PMT_2199; -. DR eggNOG; COG0259; Bacteria. DR HOGENOM; CLU_032263_2_2_3; -. DR OrthoDB; 9780392at2; -. DR UniPathway; UPA01068; UER00304. DR UniPathway; UPA01068; UER00305. DR Proteomes; UP000001423; Chromosome. DR GO; GO:0010181; F:FMN binding; IEA:UniProtKB-UniRule. DR GO; GO:0004733; F:pyridoxamine phosphate oxidase activity; IEA:UniProtKB-UniRule. DR GO; GO:0008615; P:pyridoxine biosynthetic process; IEA:UniProtKB-KW. DR HAMAP; MF_01629; PdxH; 1. DR InterPro; IPR000659; Pyridox_Oxase. DR InterPro; IPR019740; Pyridox_Oxase_CS. DR InterPro; IPR011576; Pyridox_Oxase_put. DR InterPro; IPR019576; Pyridoxamine_oxidase_dimer_C. DR InterPro; IPR012349; Split_barrel_FMN-bd. DR NCBIfam; TIGR00558; pdxH; 1. DR PANTHER; PTHR10851:SF0; PYRIDOXINE-5'-PHOSPHATE OXIDASE; 1. DR PANTHER; PTHR10851; PYRIDOXINE-5-PHOSPHATE OXIDASE; 1. DR Pfam; PF10590; PNP_phzG_C; 1. DR Pfam; PF01243; Putative_PNPOx; 1. DR PIRSF; PIRSF000190; Pyd_amn-ph_oxd; 1. DR SUPFAM; SSF50475; FMN-binding split barrel; 1. DR PROSITE; PS01064; PYRIDOX_OXIDASE; 1. PE 3: Inferred from homology; KW Flavoprotein; FMN; Oxidoreductase; Pyridoxine biosynthesis; KW Reference proteome. FT CHAIN 1..222 FT /note="Pyridoxine/pyridoxamine 5'-phosphate oxidase" FT /id="PRO_0000167734" FT BINDING 14..17 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 66..71 FT /ligand="FMN" FT /ligand_id="ChEBI:CHEBI:58210" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 71 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 81..82 FT /ligand="FMN" FT /ligand_id="ChEBI:CHEBI:58210" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 87 FT /ligand="FMN" FT /ligand_id="ChEBI:CHEBI:58210" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 88 FT /ligand="FMN" FT /ligand_id="ChEBI:CHEBI:58210" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 110 FT /ligand="FMN" FT /ligand_id="ChEBI:CHEBI:58210" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 128 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 132 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 136 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 145..146 FT /ligand="FMN" FT /ligand_id="ChEBI:CHEBI:58210" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 190 FT /ligand="FMN" FT /ligand_id="ChEBI:CHEBI:58210" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 196..198 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" FT BINDING 200 FT /ligand="FMN" FT /ligand_id="ChEBI:CHEBI:58210" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01629" SQ SEQUENCE 222 AA; 25836 MW; 59B0BC571629162C CRC64; MGAPSPDQDI AAIRRNYQRA SLRSVDLEAD PVEQFRRWLQ QAIAADLQES TAMVLSTFDG KRPSSRTVLL KAFDKRGFVF FTNYGSRKAE DISAHPNVSL LFPWYDLERQ VAIMGPAERI SRAESQAYFS SRPFGSRLGV WVSQQSQVIS SRQILEMKWQ EMNRRFANGE VPLPEFWGGF RVAPTEFEFW QGRENRLNDR FRYRPQQDSN HAQTWRIERL AP //