ID   PDXB_PORGI              Reviewed;         369 AA.
AC   Q7MV70;
DT   13-APR-2004, integrated into UniProtKB/Swiss-Prot.
DT   24-JUL-2007, sequence version 2.
DT   03-AUG-2022, entry version 113.
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=PG_1220;
OS   Porphyromonas gingivalis (strain ATCC BAA-308 / W83).
OC   Bacteria; Bacteroidetes; Bacteroidia; Bacteroidales; Porphyromonadaceae;
OC   Porphyromonas.
OX   NCBI_TaxID=242619;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-308 / W83;
RX   PubMed=12949112; DOI=10.1128/jb.185.18.5591-5601.2003;
RA   Nelson K.E., Fleischmann R.D., DeBoy R.T., Paulsen I.T., Fouts D.E.,
RA   Eisen J.A., Daugherty S.C., Dodson R.J., Durkin A.S., Gwinn M.L.,
RA   Haft D.H., Kolonay J.F., Nelson W.C., Mason T.M., Tallon L., Gray J.,
RA   Granger D., Tettelin H., Dong H., Galvin J.L., Duncan M.J., Dewhirst F.E.,
RA   Fraser C.M.;
RT   "Complete genome sequence of the oral pathogenic bacterium Porphyromonas
RT   gingivalis strain W83.";
RL   J. Bacteriol. 185:5591-5601(2003).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAQ66310.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AE015924; AAQ66310.1; ALT_INIT; Genomic_DNA.
DR   AlphaFoldDB; Q7MV70; -.
DR   SMR; Q7MV70; -.
DR   STRING; 242619.PG_1220; -.
DR   EnsemblBacteria; AAQ66310; AAQ66310; PG_1220.
DR   KEGG; pgi:PG_1220; -.
DR   PATRIC; fig|242619.8.peg.1133; -.
DR   eggNOG; COG0111; Bacteria.
DR   HOGENOM; CLU_019796_4_0_10; -.
DR   UniPathway; UPA00244; UER00310.
DR   Proteomes; UP000000588; Chromosome.
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   Gene3D; 3.30.1370.170; -; 1.
DR   HAMAP; MF_01825; PdxB; 1.
DR   InterPro; IPR006139; D-isomer_2_OHA_DH_cat_dom.
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   InterPro; IPR038251; PdxB_dimer_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.
PE   3: Inferred from homology;
KW   Cytoplasm; NAD; Oxidoreductase; Pyridoxine biosynthesis;
KW   Reference proteome.
FT   CHAIN           1..369
FT                   /note="Erythronate-4-phosphate dehydrogenase"
FT                   /id="PRO_0000075981"
FT   ACT_SITE        209
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   ACT_SITE        238
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   ACT_SITE        255
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         146
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   BINDING         233
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT   BINDING         258
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
SQ   SEQUENCE   369 AA;  40669 MW;  9C7FF0957346B0FB CRC64;
     MKIVAEASVP YLRGIVDPVA DITYLHSDCF SPDTIRHARV LIVRSITKCT PALLQGTDVR
     LITTATAGFD HIDREYCESH GILWRNSPGC NATAVAQYVM CCLCRLALRE GFSLKEKVMG
     IVGVGHVGGE LKRLASAYGM EFLLCDPPRS EAEQDNSFLP LSRLVEQCDI ISFHVPLTHE
     DPHATYHLIG EAFLRSCADK RPILINACRG AVADTQALIR AVKSGWLQAL VIDCWEGEPD
     IDLSLLDLAD IATPHIAGFS ADGKANGARM CLEAITEVFG LEFPLLHTLA PPPPTHPIID
     LSLFPDHRIE RALLHTFDPL VPDRSLRASP KTFEEQRKAY PHPREMKAFT VVGATTEEAK
     ILRGMDFIS