PDXB_IDILO
ID PDXB_IDILO Reviewed; 381 AA.
AC Q5QUE2;
DT 24-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT 04-JAN-2005, sequence version 1.
DT 03-AUG-2022, entry version 116.
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=IL1020;
OS Idiomarina loihiensis (strain ATCC BAA-735 / DSM 15497 / L2-TR).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales;
OC Idiomarinaceae; Idiomarina.
OX NCBI_TaxID=283942;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-735 / DSM 15497 / L2-TR;
RX PubMed=15596722; DOI=10.1073/pnas.0407638102;
RA Hou S., Saw J.H., Lee K.S., Freitas T.A., Belisle C., Kawarabayasi Y.,
RA Donachie S.P., Pikina A., Galperin M.Y., Koonin E.V., Makarova K.S.,
RA Omelchenko M.V., Sorokin A., Wolf Y.I., Li Q.X., Keum Y.S., Campbell S.,
RA Denery J., Aizawa S., Shibata S., Malahoff A., Alam M.;
RT "Genome sequence of the deep-sea gamma-proteobacterium Idiomarina
RT loihiensis reveals amino acid fermentation as a source of carbon and
RT energy.";
RL Proc. Natl. Acad. Sci. U.S.A. 101:18036-18041(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; AE017340; AAV81860.1; -; Genomic_DNA.
DR RefSeq; WP_011234271.1; NC_006512.1.
DR AlphaFoldDB; Q5QUE2; -.
DR SMR; Q5QUE2; -.
DR STRING; 283942.IL1020; -.
DR EnsemblBacteria; AAV81860; AAV81860; IL1020.
DR KEGG; ilo:IL1020; -.
DR eggNOG; COG0111; Bacteria.
DR HOGENOM; CLU_019796_4_0_6; -.
DR OMA; SAPGCNA; -.
DR OrthoDB; 1638924at2; -.
DR UniPathway; UPA00244; UER00310.
DR Proteomes; UP000001171; 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; 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 Pfam; PF00389; 2-Hacid_dh; 1.
DR Pfam; PF02826; 2-Hacid_dh_C; 1.
DR Pfam; PF11890; DUF3410; 1.
DR SUPFAM; SSF51735; SSF51735; 1.
PE 3: Inferred from homology;
KW Cytoplasm; NAD; Oxidoreductase; Pyridoxine biosynthesis;
KW Reference proteome.
FT CHAIN 1..381
FT /note="Erythronate-4-phosphate dehydrogenase"
FT /id="PRO_0000297443"
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 67
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT BINDING 148
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01825"
FT BINDING 207..209
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 381 AA; 42036 MW; A21218EE26A438D5 CRC64;
MKIVADQNIP ALSDLLSGAG TLSYFSERIP PQKLLAEADA LLVRSVTQVD EVLLEQAPEL
KFVASATIGT EHINLQALEE RGIGFAHAPG ANAQSVGEYV LCAVLNWLSD QPRYVADEID
VAIVGAGHTG KAAGKRLEAL GLNVHYYDPP LCKKGVKFVH DHWQRVLTAD IISCHVPLTR
DGDFPTQHLF ENTALQSLHS QQLLINASRG AVIDNNALLE RVEQGERPSL VLDVWENEPE
VLSGLVPYVD IATPHIAGHS LEGKVGGAVM ISNALLEHFG KPADKTLSDV LPGKAWNERD
AGGLNSLESL NLWAKEHYDL FRDDELFRQQ GLTTEGFDSL RRNYRKESPR REFINQVVTC
HNSEQYIQFL QLGFSARLLS K