ID   PDXH_SYNY3              Reviewed;         214 AA.
AC   P74211; Q55239;
DT   15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2006, sequence version 2.
DT   27-MAR-2024, entry version 146.
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}; Synonyms=fprA;
GN   OrderedLocusNames=sll1440;
OS   Synechocystis sp. (strain PCC 6803 / Kazusa).
OC   Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales; Merismopediaceae;
OC   Synechocystis.
OX   NCBI_TaxID=1111708;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 6803 / Kazusa;
RX   PubMed=8905231; DOI=10.1093/dnares/3.3.109;
RA   Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y.,
RA   Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T.,
RA   Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.,
RA   Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.;
RT   "Sequence analysis of the genome of the unicellular cyanobacterium
RT   Synechocystis sp. strain PCC6803. II. Sequence determination of the entire
RT   genome and assignment of potential protein-coding regions.";
RL   DNA Res. 3:109-136(1996).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 178-214.
RX   PubMed=7524725; DOI=10.1007/bf00039536;
RA   Sakamoto T., Los D.A., Higashi S., Wada H., Nishida I., Ohmori M.,
RA   Murata N.;
RT   "Cloning of omega 3 desaturase from cyanobacteria and its use in altering
RT   the degree of membrane-lipid unsaturation.";
RL   Plant Mol. Biol. 26:249-263(1994).
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   -!- SEQUENCE CAUTION:
CC       Sequence=BAA18303.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; BA000022; BAA18303.1; ALT_INIT; Genomic_DNA.
DR   EMBL; D13780; BAA02923.1; -; Genomic_DNA.
DR   PIR; S75844; S75844.
DR   AlphaFoldDB; P74211; -.
DR   SMR; P74211; -.
DR   IntAct; P74211; 3.
DR   STRING; 1148.gene:10499179; -.
DR   PaxDb; 1148-1653389; -.
DR   EnsemblBacteria; BAA18303; BAA18303; BAA18303.
DR   KEGG; syn:sll1440; -.
DR   eggNOG; COG0259; Bacteria.
DR   InParanoid; P74211; -.
DR   PhylomeDB; P74211; -.
DR   UniPathway; UPA01068; UER00304.
DR   UniPathway; UPA01068; UER00305.
DR   Proteomes; UP000001425; Chromosome.
DR   GO; GO:0010181; F:FMN binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004733; F:pyridoxamine phosphate oxidase activity; IBA:GO_Central.
DR   GO; GO:0042823; P:pyridoxal phosphate biosynthetic process; IBA:GO_Central.
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..214
FT                   /note="Pyridoxine/pyridoxamine 5'-phosphate oxidase"
FT                   /id="PRO_0000167763"
FT   BINDING         10..13
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
FT   BINDING         63..68
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
FT   BINDING         68
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
FT   BINDING         78..79
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
FT   BINDING         85
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
FT   BINDING         107
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
FT   BINDING         125
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
FT   BINDING         129
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
FT   BINDING         133
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
FT   BINDING         142..143
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
FT   BINDING         187
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
FT   BINDING         193..195
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
FT   BINDING         197
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01629"
SQ   SEQUENCE   214 AA;  24587 MW;  7516345395EE481C CRC64;
     MDGVSLADLR LNYTQGGLIE AEVADHPFAQ FHIWLQQAIA AELPEPNAMT LSTLSEEGHP
     VGRMVLLKGL DERGFVFYTN YDSAKGQQLT AHPWAGLVFW WAALERQVRV DGQVEKIDPA
     ESDAYFQSRP RGSQLGAWAS PQSRIVGDRQ ELEDNLARWE KQYENQSIPR PPHWGGFRVI
     PHRIEFWQGR PSRLHDRLQF NLLDGQWHRQ RLAP
//