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Database: UniProt
Entry: B1X931
LinkDB: B1X931
Original site: B1X931 
ID   PDXB_ECODH              Reviewed;         378 AA.
AC   B1X931;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   05-DEC-2018, entry version 70.
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};
GN   OrderedLocusNames=ECDH10B_2482;
OS   Escherichia coli (strain K12 / DH10B).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=316385;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / DH10B;
RX   PubMed=18245285; DOI=10.1128/JB.01695-07;
RA   Durfee T., Nelson R., Baldwin S., Plunkett G. III, Burland V., Mau B.,
RA   Petrosino J.F., Qin X., Muzny D.M., Ayele M., Gibbs R.A., Csorgo B.,
RA   Posfai G., Weinstock G.M., Blattner F.R.;
RT   "The complete genome sequence of Escherichia coli DH10B: insights into
RT   the biology of a laboratory workhorse.";
RL   J. Bacteriol. 190:2597-2606(2008).
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
CC       biosynthesis; pyridoxine 5'-phosphate from D-erythrose 4-
CC       phosphate: step 2/5. {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}.
DR   EMBL; CP000948; ACB03478.1; -; Genomic_DNA.
DR   RefSeq; WP_000699148.1; NC_010473.1.
DR   ProteinModelPortal; B1X931; -.
DR   SMR; B1X931; -.
DR   EnsemblBacteria; ACB03478; ACB03478; ECDH10B_2482.
DR   KEGG; ecd:ECDH10B_2482; -.
DR   eggNOG; ENOG4105CJ0; Bacteria.
DR   eggNOG; COG0111; LUCA.
DR   HOGENOM; HOG000234432; -.
DR   KO; K03473; -.
DR   OMA; SAPGCNA; -.
DR   BioCyc; ECOL316385:ECDH10B_RS12625-MONOMER; -.
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: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   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; PTHR42938:SF3; PTHR42938:SF3; 1.
DR   Pfam; PF00389; 2-Hacid_dh; 1.
DR   Pfam; PF02826; 2-Hacid_dh_C; 1.
DR   Pfam; PF11890; DUF3410; 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    378       Erythronate-4-phosphate dehydrogenase.
FT                                /FTId=PRO_1000188265.
FT   ACT_SITE    208    208       {ECO:0000255|HAMAP-Rule:MF_01825}.
FT   ACT_SITE    237    237       {ECO:0000255|HAMAP-Rule:MF_01825}.
FT   ACT_SITE    254    254       Proton donor. {ECO:0000255|HAMAP-
FT                                Rule:MF_01825}.
FT   BINDING      45     45       Substrate. {ECO:0000255|HAMAP-
FT                                Rule:MF_01825}.
FT   BINDING      66     66       Substrate. {ECO:0000255|HAMAP-
FT                                Rule:MF_01825}.
FT   BINDING     146    146       NAD. {ECO:0000255|HAMAP-Rule:MF_01825}.
FT   BINDING     175    175       NAD; via carbonyl oxygen.
FT                                {ECO:0000255|HAMAP-Rule:MF_01825}.
FT   BINDING     232    232       NAD. {ECO:0000255|HAMAP-Rule:MF_01825}.
FT   BINDING     257    257       NAD; via amide nitrogen.
FT                                {ECO:0000255|HAMAP-Rule:MF_01825}.
FT   BINDING     258    258       Substrate. {ECO:0000255|HAMAP-
FT                                Rule:MF_01825}.
SQ   SEQUENCE   378 AA;  41368 MW;  6CEF17691CF2C14A CRC64;
     MKILVDENMP YARDLFSRLG EVTAVPGRPI PVAQLADADA LMVRSVTKVN ESLLAGKPIK
     FVGTATAGTD HVDEAWLKQA GIGFSAAPGC NAIAVVEYVF SSLLMLAERD GFSLYDRTVG
     IVGVGNVGRR LQARLEALGI KTLLCDPPRA DRGDEGDFRS LDELVQRADI LTFHTPLFKD
     GPYKTLHLAD EKLIRSLKPG AILINACRGA VVDNTALLTC LNEGQKLSVV LDVWEGEPEL
     NVELLKKVDI GTSHIAGYTL EGKARGTTQV FEAYSKFIGH EQHVALDTLL PAPEFGRITL
     HGPLDQPTLK RLVHLVYDVR RDDAPLRKVA GIPGEFDKLR KNYLERREWS SLYVICDDAS
     AASLLCKLGF NAVHHPAR
//
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