ID F4CE44_SPHS2 Unreviewed; 238 AA.
AC F4CE44;
DT 28-JUN-2011, integrated into UniProtKB/TrEMBL.
DT 28-JUN-2011, sequence version 1.
DT 27-MAR-2024, entry version 59.
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 OrderedLocusNames=Sph21_1240 {ECO:0000313|EMBL:ADZ77805.1};
OS Sphingobacterium sp. (strain 21).
OC Bacteria; Bacteroidota; Sphingobacteriia; Sphingobacteriales;
OC Sphingobacteriaceae; Sphingobacterium.
OX NCBI_TaxID=743722 {ECO:0000313|EMBL:ADZ77805.1};
RN [1] {ECO:0000313|EMBL:ADZ77805.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=21 {ECO:0000313|EMBL:ADZ77805.1};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Davenport K., Detter J.C., Han C., Tapia R., Land M., Hauser L.,
RA Kyrpides N., Ivanova N., Ovchinnikova G., Pagani I., Siebers A.K.,
RA Allgaier M., Thelen M.P., Hugenholtz P., Woyke T.;
RT "Complete sequence of Sphingobacterium sp. 21.";
RL Submitted (MAR-2011) 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}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00279}.
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DR EMBL; CP002584; ADZ77805.1; -; Genomic_DNA.
DR AlphaFoldDB; F4CE44; -.
DR STRING; 743722.Sph21_1240; -.
DR KEGG; shg:Sph21_1240; -.
DR PATRIC; fig|743722.3.peg.1329; -.
DR eggNOG; COG0854; Bacteria.
DR HOGENOM; CLU_074563_1_0_10; -.
DR OrthoDB; 9806590at2; -.
DR UniPathway; UPA00244; UER00313.
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};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_00279, ECO:0000313|EMBL:ADZ77805.1}.
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 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 101
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 214..215
FT /ligand="3-amino-2-oxopropyl phosphate"
FT /ligand_id="ChEBI:CHEBI:57279"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
FT SITE 152
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00279"
SQ SEQUENCE 238 AA; 26495 MW; F50F1C9EC9D80BF5 CRC64;
MTKLSVNINK VATLRNSRGG NNPNVLQVAL DCEKFGAQGI TVHPRPDERH IRYQDVYDLK
AAITTEFNIE GNCREKKFVD LVLANKPTQV TLVPDEQGQI TSNHGWDTIA NQSYLKEMSA
LFKDAGIRVS IFVDPDPKMV EAAASTGTDR IELYTEAYAT NYYKNPAEAV QPYAEAAKLA
HELGLGLNAG HDLDLHNLQY FRSQIPHLLE VSIGHALIAD ALYLGLEETI KRYRAQLS
//
