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Database: UniProt
Entry: K9T0V9_9CYAN
LinkDB: K9T0V9_9CYAN
Original site: K9T0V9_9CYAN 
ID   K9T0V9_9CYAN            Unreviewed;       240 AA.
AC   K9T0V9;
DT   06-MAR-2013, integrated into UniProtKB/TrEMBL.
DT   06-MAR-2013, sequence version 1.
DT   24-JAN-2024, entry version 52.
DE   RecName: Full=Pyridoxine 5'-phosphate synthase {ECO:0000256|HAMAP-Rule:MF_00279};
DE            Short=PNP synthase {ECO:0000256|HAMAP-Rule:MF_00279};
DE            EC=2.6.99.2 {ECO:0000256|HAMAP-Rule:MF_00279};
GN   Name=pdxJ {ECO:0000256|HAMAP-Rule:MF_00279};
GN   ORFNames=Ple7327_0645 {ECO:0000313|EMBL:AFY76078.1};
OS   Pleurocapsa sp. PCC 7327.
OC   Bacteria; Cyanobacteriota; Cyanophyceae; Pleurocapsales; Hyellaceae;
OC   Pleurocapsa.
OX   NCBI_TaxID=118163 {ECO:0000313|EMBL:AFY76078.1, ECO:0000313|Proteomes:UP000010382};
RN   [1] {ECO:0000313|EMBL:AFY76078.1, ECO:0000313|Proteomes:UP000010382}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7327 {ECO:0000313|EMBL:AFY76078.1,
RC   ECO:0000313|Proteomes:UP000010382};
RG   US DOE Joint Genome Institute;
RA   Gugger M., Coursin T., Rippka R., Tandeau De Marsac N., Huntemann M.,
RA   Wei C.-L., Han J., Detter J.C., Han C., Tapia R., Chen A., Kyrpides N.,
RA   Mavromatis K., Markowitz V., Szeto E., Ivanova N., Pagani I., Pati A.,
RA   Goodwin L., Nordberg H.P., Cantor M.N., Hua S.X., Woyke T., Kerfeld C.A.;
RT   "Finished genome of Pleurocapsa sp. PCC 7327.";
RL   Submitted (MAY-2012) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the complicated ring closure reaction between the
CC       two acyclic compounds 1-deoxy-D-xylulose-5-phosphate (DXP) and 3-amino-
CC       2-oxopropyl phosphate (1-amino-acetone-3-phosphate or AAP) to form
CC       pyridoxine 5'-phosphate (PNP) and inorganic phosphate.
CC       {ECO:0000256|HAMAP-Rule:MF_00279}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=1-deoxy-D-xylulose 5-phosphate + 3-amino-2-oxopropyl phosphate
CC         = H(+) + 2 H2O + phosphate + pyridoxine 5'-phosphate;
CC         Xref=Rhea:RHEA:15265, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57279, ChEBI:CHEBI:57792,
CC         ChEBI:CHEBI:58589; EC=2.6.99.2; Evidence={ECO:0000256|HAMAP-
CC         Rule:MF_00279};
CC   -!- PATHWAY: Cofactor biosynthesis; pyridoxine 5'-phosphate biosynthesis;
CC       pyridoxine 5'-phosphate from D-erythrose 4-phosphate: step 5/5.
CC       {ECO:0000256|HAMAP-Rule:MF_00279}.
CC   -!- SUBUNIT: Homooctamer; tetramer of dimers. {ECO:0000256|HAMAP-
CC       Rule:MF_00279}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00279}.
CC   -!- SIMILARITY: Belongs to the PNP synthase family. {ECO:0000256|HAMAP-
CC       Rule:MF_00279}.
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DR   EMBL; CP003590; AFY76078.1; -; Genomic_DNA.
DR   RefSeq; WP_015142386.1; NC_019689.1.
DR   AlphaFoldDB; K9T0V9; -.
DR   STRING; 118163.Ple7327_0645; -.
DR   KEGG; plp:Ple7327_0645; -.
DR   PATRIC; fig|118163.3.peg.713; -.
DR   eggNOG; COG0854; Bacteria.
DR   HOGENOM; CLU_074563_0_0_3; -.
DR   UniPathway; UPA00244; UER00313.
DR   Proteomes; UP000010382; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0033856; F:pyridoxine 5'-phosphate synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0008615; P:pyridoxine biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd00003; PNPsynthase; 1.
DR   Gene3D; 3.20.20.70; Aldolase class I; 1.
DR   HAMAP; MF_00279; PdxJ; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR004569; PyrdxlP_synth_PdxJ.
DR   InterPro; IPR036130; Pyridoxine-5'_phos_synth.
DR   NCBIfam; TIGR00559; pdxJ; 1.
DR   PANTHER; PTHR30456; PYRIDOXINE 5'-PHOSPHATE SYNTHASE; 1.
DR   PANTHER; PTHR30456:SF0; PYRIDOXINE 5'-PHOSPHATE SYNTHASE; 1.
DR   Pfam; PF03740; PdxJ; 1.
DR   SUPFAM; SSF63892; Pyridoxine 5'-phosphate synthase; 1.
PE   3: Inferred from homology;
KW   Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_00279};
KW   Pyridoxine biosynthesis {ECO:0000256|ARBA:ARBA00023096, ECO:0000256|HAMAP-
KW   Rule:MF_00279}; Reference proteome {ECO:0000313|Proteomes:UP000010382};
KW   Transferase {ECO:0000256|HAMAP-Rule:MF_00279}.
FT   ACT_SITE        43
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
FT   ACT_SITE        70
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
FT   ACT_SITE        191
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
FT   BINDING         7
FT                   /ligand="3-amino-2-oxopropyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:57279"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
FT   BINDING         9..10
FT                   /ligand="1-deoxy-D-xylulose 5-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:57792"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
FT   BINDING         18
FT                   /ligand="3-amino-2-oxopropyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:57279"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
FT   BINDING         45
FT                   /ligand="1-deoxy-D-xylulose 5-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:57792"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
FT   BINDING         50
FT                   /ligand="1-deoxy-D-xylulose 5-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:57792"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
FT   BINDING         100
FT                   /ligand="1-deoxy-D-xylulose 5-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:57792"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
FT   BINDING         192
FT                   /ligand="3-amino-2-oxopropyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:57279"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
FT   BINDING         213..214
FT                   /ligand="3-amino-2-oxopropyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:57279"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
FT   SITE            151
FT                   /note="Transition state stabilizer"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
SQ   SEQUENCE   240 AA;  26535 MW;  C0EC18FA64AFB74D CRC64;
     MLTLGVNIDH VATIRQARRT VEPDPIAAAV LAELGGADGI TAHLREDRRH IQDRDVRLLR
     QTVRTHLNLE MAAIDEMVAI AIEVKPDYVT LVPEKREEVT TEGGLDVVGG LDRLCQVVDR
     LQGEGILVSL FIDTDPAQIE AAAKTKAQFI ELNTGKYAEA HDEKTRQKEL DLLRKGCEEA
     ISLGLRVNAG HGLTYWNVYP VACIPGMEEL NIGHTIISRA VLVGMERAVR EMKLAMRGEF
//
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