ID   PDXB_LEGPA              Reviewed;         350 AA.
AC   Q5X6I6;
DT   24-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   03-AUG-2022, entry version 102.
DE   RecName: Full=Erythronate-4-phosphate dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01825};
DE            EC=1.1.1.290 {ECO:0000255|HAMAP-Rule:MF_01825};
GN   Name=pdxB {ECO:0000255|HAMAP-Rule:MF_01825}; OrderedLocusNames=lpp0979;
OS   Legionella pneumophila (strain Paris).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Legionellales;
OC   Legionellaceae; Legionella.
OX   NCBI_TaxID=297246;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Paris;
RX   PubMed=15467720; DOI=10.1038/ng1447;
RA   Cazalet C., Rusniok C., Brueggemann H., Zidane N., Magnier A., Ma L.,
RA   Tichit M., Jarraud S., Bouchier C., Vandenesch F., Kunst F., Etienne J.,
RA   Glaser P., Buchrieser C.;
RT   "Evidence in the Legionella pneumophila genome for exploitation of host
RT   cell functions and high genome plasticity.";
RL   Nat. Genet. 36:1165-1173(2004).
CC   -!- FUNCTION: Catalyzes the oxidation of erythronate-4-phosphate to 3-
CC       hydroxy-2-oxo-4-phosphonooxybutanoate. {ECO:0000255|HAMAP-
CC       Rule:MF_01825}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=4-phospho-D-erythronate + NAD(+) = (R)-3-hydroxy-2-oxo-4-
CC         phosphooxybutanoate + H(+) + NADH; Xref=Rhea:RHEA:18829,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945,
CC         ChEBI:CHEBI:58538, ChEBI:CHEBI:58766; EC=1.1.1.290;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01825};
CC   -!- PATHWAY: Cofactor biosynthesis; pyridoxine 5'-phosphate biosynthesis;
CC       pyridoxine 5'-phosphate from D-erythrose 4-phosphate: step 2/5.
CC       {ECO:0000255|HAMAP-Rule:MF_01825}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01825}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01825}.
CC   -!- SIMILARITY: Belongs to the D-isomer specific 2-hydroxyacid
CC       dehydrogenase family. PdxB subfamily. {ECO:0000255|HAMAP-
CC       Rule:MF_01825}.
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DR   EMBL; CR628336; CAH12130.1; -; Genomic_DNA.
DR   RefSeq; WP_010946653.1; NC_006368.1.
DR   AlphaFoldDB; Q5X6I6; -.
DR   SMR; Q5X6I6; -.
DR   GeneID; 66490099; -.
DR   KEGG; lpp:lpp0979; -.
DR   LegioList; lpp0979; -.
DR   HOGENOM; CLU_019796_4_0_6; -.
DR   OMA; SAPGCNA; -.
DR   UniPathway; UPA00244; UER00310.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0033711; F:4-phosphoerythronate dehydrogenase activity; IEA:UniProtKB-EC.
DR   GO; GO:0051287; F:NAD binding; IEA:InterPro.
DR   GO; GO:0008615; P:pyridoxine biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd12158; ErythrP_dh; 1.
DR   HAMAP; MF_01825; PdxB; 1.
DR   InterPro; IPR006139; D-isomer_2_OHA_DH_cat_dom.
DR   InterPro; IPR029753; D-isomer_DH_CS.
DR   InterPro; IPR029752; D-isomer_DH_CS1.
DR   InterPro; IPR006140; D-isomer_DH_NAD-bd.
DR   InterPro; IPR020921; Erythronate-4-P_DHase.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   Pfam; PF00389; 2-Hacid_dh; 1.
DR   Pfam; PF02826; 2-Hacid_dh_C; 1.
DR   SUPFAM; SSF51735; SSF51735; 1.
DR   PROSITE; PS00065; D_2_HYDROXYACID_DH_1; 1.
DR   PROSITE; PS00671; D_2_HYDROXYACID_DH_3; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; NAD; Oxidoreductase; Pyridoxine biosynthesis.
FT   CHAIN           1..350
FT                   /note="Erythronate-4-phosphate dehydrogenase"
FT                   /id="PRO_0000297445"
FT   ACT_SITE        205
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   ACT_SITE        231
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   ACT_SITE        248
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   BINDING         45
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   BINDING         66
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   BINDING         124..125
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   BINDING         144
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   BINDING         203..205
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   BINDING         226
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   BINDING         251
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
SQ   SEQUENCE   350 AA;  38952 MW;  C164CDBAB117A9D1 CRC64;
     MNILADALLP GLDSAFPPPF TVTLYHKADE IPELLHYKDV LLCRSTLKIN GDLLKNHQIK
     FVATATSGTD HIDFPFLESQ NISIIDAKGC NAISVADYVV ACLAYLDKQQ LIQGKTAGII
     GLGQVGTKVY ERLNAAEFQL CLYDPPKATR DTSFQSCSLE DLFECDLLCV HAELHSDAPY
     PSLNLINRDF LKELKPGCII INASRGGIVN EEALLHLGSA ILYCTDVYNN EPHIDSRIVS
     KATLCTPHIA GHSLEAKFAA VAIVSRKLHQ MLGLPYPQFA TPEKPYRLNE NSDWRELALS
     IYNPIHETLE LKHAGNLSSA FLTLRKNHHH RHDFTTYFDS DSIKKYPLLG