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Database: UniProt
Entry: PDXB_BLOFL
LinkDB: PDXB_BLOFL
Original site: PDXB_BLOFL 
ID   PDXB_BLOFL              Reviewed;         372 AA.
AC   Q7VRU9;
DT   13-APR-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   27-MAR-2024, entry version 107.
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=Bfl497;
OS   Blochmannia floridanus.
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; ant endosymbionts; Blochmannia.
OX   NCBI_TaxID=203907;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=12886019; DOI=10.1073/pnas.1533499100;
RA   Gil R., Silva F.J., Zientz E., Delmotte F., Gonzalez-Candelas F.,
RA   Latorre A., Rausell C., Kamerbeek J., Gadau J., Hoelldobler B.,
RA   van Ham R.C.H.J., Gross R., Moya A.;
RT   "The genome sequence of Blochmannia floridanus: comparative analysis of
RT   reduced genomes.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:9388-9393(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}.
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DR   EMBL; BX248583; CAD83186.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q7VRU9; -.
DR   SMR; Q7VRU9; -.
DR   STRING; 203907.Bfl497; -.
DR   KEGG; bfl:Bfl497; -.
DR   eggNOG; COG0111; Bacteria.
DR   HOGENOM; CLU_019796_4_0_6; -.
DR   OrthoDB; 9770208at2; -.
DR   UniPathway; UPA00244; UER00310.
DR   Proteomes; UP000002192; 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:0046983; F:protein dimerization activity; 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   Gene3D; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 2.
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; IPR024531; Erythronate-4-P_DHase_dimer.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   InterPro; IPR038251; PdxB_dimer_sf.
DR   PANTHER; PTHR43761:SF1; 2-HACID_DH DOMAIN-CONTAINING PROTEIN-RELATED; 1.
DR   PANTHER; PTHR43761; D-ISOMER SPECIFIC 2-HYDROXYACID DEHYDROGENASE FAMILY PROTEIN (AFU_ORTHOLOGUE AFUA_1G13630); 1.
DR   Pfam; PF00389; 2-Hacid_dh; 1.
DR   Pfam; PF02826; 2-Hacid_dh_C; 1.
DR   Pfam; PF11890; DUF3410; 1.
DR   SUPFAM; SSF52283; Formate/glycerate dehydrogenase catalytic domain-like; 1.
DR   SUPFAM; SSF51735; NAD(P)-binding Rossmann-fold domains; 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..372
FT                   /note="Erythronate-4-phosphate dehydrogenase"
FT                   /id="PRO_0000075973"
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"
FT   BINDING         259
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
SQ   SEQUENCE   372 AA;  42534 MW;  1DB671FF109F5486 CRC64;
     MRILADQAIP YVYKLFGSDN YVQVCDGRSI SANMLKDVDV LIIRSITKVN HMLLYDSSIK
     FIGTVTSGVD HIDQNYLKNN NIRCVSTPGS NAVSVVEYVC ATLFWLAQRD CFFLRDKTVG
     IIGVGNIGNL LYQRLNSLGV HTLLYDPYKS KCDTDRMSWK SLDILVSKSD ILTLHVPLTY
     TGAYPTWHMI NKDILDALPS NSILINTSRG AVVNNDDLLA ILRCGKKINV ILDVWESEPK
     LSLPLLSYVD IGTAHIAGYS FESRIRSIKK IYDDYCDYFN VKNKVNWISL GLSDIRYIAV
     SRLDECIINR LIQLVYNVYY DHIALKNNVL RLRGFDKLRE YYCFRREWSS LLVDSKNGYN
     NDILFKFGFS TL
//
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