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Database: UniProt
Entry: B7MG84
LinkDB: B7MG84
Original site: B7MG84 
ID   PDXB_ECO45              Reviewed;         378 AA.
AC   B7MG84;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   05-DEC-2018, entry version 68.
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=ECS88_2468;
OS   Escherichia coli O45:K1 (strain S88 / ExPEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=585035;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=S88 / ExPEC;
RX   PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA   Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA   Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A.,
RA   Chiapello H., Clermont O., Cruveiller S., Danchin A., Diard M.,
RA   Dossat C., Karoui M.E., Frapy E., Garry L., Ghigo J.M., Gilles A.M.,
RA   Johnson J., Le Bouguenec C., Lescat M., Mangenot S.,
RA   Martinez-Jehanne V., Matic I., Nassif X., Oztas S., Petit M.A.,
RA   Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J., Vacherie B.,
RA   Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT   "Organised genome dynamics in the Escherichia coli species results in
RT   highly diverse adaptive paths.";
RL   PLoS Genet. 5:E1000344-E1000344(2009).
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; CU928161; CAR03746.1; -; Genomic_DNA.
DR   RefSeq; WP_000699136.1; NC_011742.1.
DR   ProteinModelPortal; B7MG84; -.
DR   SMR; B7MG84; -.
DR   EnsemblBacteria; CAR03746; CAR03746; ECS88_2468.
DR   KEGG; ecz:ECS88_2468; -.
DR   HOGENOM; HOG000234432; -.
DR   KO; K03473; -.
DR   OMA; SAPGCNA; -.
DR   UniPathway; UPA00244; UER00310.
DR   Proteomes; UP000000747; 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   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   Complete proteome; Cytoplasm; NAD; Oxidoreductase;
KW   Pyridoxine biosynthesis.
FT   CHAIN         1    378       Erythronate-4-phosphate dehydrogenase.
FT                                /FTId=PRO_1000188259.
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;  41320 MW;  99AE46B81647CE75 CRC64;
     MKILVDENMP YARDLFSRLG EVTAVPGRPI PVAQLADADA LMVRSVTKVN ESLLAGKPIK
     FVGTATAGTD HVDEAWLKQA GIGFSAAPGC NAIAVVEYVF SSLLMLAERD GFSLHERTVG
     IVGVGNVGRR LQARLEALGI KTLLCDPPRA DRGDEGDFRS LDELVQHADI LTFHTPLFKD
     GPYKTLHLAD EKLIRSLKPG AILINACRGA VVDNTALLTC LSEGQKLSVV LDVWEGEPEL
     NVELLKKVDI GTPHIAGYTL EGKARGTTQV FEAYSKFIGH EQHVALDTLL PAPEFGRITL
     HGPLDQPTLK RLVHLVYDVR RDDAPLRKVA GIPGEFDKLR KNYLERREWS SLYVICDDAS
     AASLLCKLGF NAVHHPAR
//
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