ID   DLGD_ECOLC              Reviewed;         332 AA.
AC   B1IZL7;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   03-AUG-2022, entry version 69.
DE   RecName: Full=2,3-diketo-L-gulonate reductase {ECO:0000255|HAMAP-Rule:MF_00820};
DE            Short=2,3-DKG reductase {ECO:0000255|HAMAP-Rule:MF_00820};
DE            EC=1.1.1.130 {ECO:0000255|HAMAP-Rule:MF_00820};
DE   AltName: Full=3-dehydro-L-gulonate 2-dehydrogenase {ECO:0000255|HAMAP-Rule:MF_00820};
GN   Name=dlgD {ECO:0000255|HAMAP-Rule:MF_00820}; OrderedLocusNames=EcolC_0139;
OS   Escherichia coli (strain ATCC 8739 / DSM 1576 / NBRC 3972 / NCIMB 8545 /
OS   WDCM 00012 / Crooks).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=481805;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 8739 / DSM 1576 / NBRC 3972 / NCIMB 8545 / WDCM 00012 / Crooks;
RA   Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Kiss H., Brettin T., Detter J.C., Han C.,
RA   Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Mikhailova N., Ingram L., Richardson P.;
RT   "Complete sequence of Escherichia coli C str. ATCC 8739.";
RL   Submitted (FEB-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the reduction of 2,3-diketo-L-gulonate in the
CC       presence of NADH, to form 3-keto-L-gulonate. {ECO:0000255|HAMAP-
CC       Rule:MF_00820}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=3-dehydro-L-gulonate + NAD(+) = 2,3-dioxo-L-gulonate + H(+) +
CC         NADH; Xref=Rhea:RHEA:21924, ChEBI:CHEBI:15378, ChEBI:CHEBI:57441,
CC         ChEBI:CHEBI:57540, ChEBI:CHEBI:57655, ChEBI:CHEBI:57945;
CC         EC=1.1.1.130; Evidence={ECO:0000255|HAMAP-Rule:MF_00820};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=3-dehydro-L-gulonate + NADP(+) = 2,3-dioxo-L-gulonate + H(+) +
CC         NADPH; Xref=Rhea:RHEA:21928, ChEBI:CHEBI:15378, ChEBI:CHEBI:57441,
CC         ChEBI:CHEBI:57655, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349;
CC         EC=1.1.1.130; Evidence={ECO:0000255|HAMAP-Rule:MF_00820};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00820}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00820}.
CC   -!- SIMILARITY: Belongs to the LDH2/MDH2 oxidoreductase family. DlgD
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00820}.
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DR   EMBL; CP000946; ACA75821.1; -; Genomic_DNA.
DR   RefSeq; WP_000869037.1; NZ_CP022959.1.
DR   AlphaFoldDB; B1IZL7; -.
DR   SMR; B1IZL7; -.
DR   KEGG; ecl:EcolC_0139; -.
DR   HOGENOM; CLU_040452_4_0_6; -.
DR   OMA; ISHMAPH; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0047559; F:3-dehydro-L-gulonate 2-dehydrogenase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0070403; F:NAD+ binding; IEA:InterPro.
DR   Gene3D; 1.10.1530.10; -; 1.
DR   Gene3D; 3.30.1370.60; -; 1.
DR   HAMAP; MF_00820; Diketo_gul_reduc; 1.
DR   InterPro; IPR023689; Diketo_gul_Rdtase.
DR   InterPro; IPR043144; Mal/L-sulf/L-lact_DH-like_ah.
DR   InterPro; IPR043143; Mal/L-sulf/L-lact_DH-like_NADP.
DR   InterPro; IPR036111; Mal/L-sulfo/L-lacto_DH-like_sf.
DR   InterPro; IPR003767; Malate/L-lactate_DH-like.
DR   PANTHER; PTHR11091; PTHR11091; 1.
DR   Pfam; PF02615; Ldh_2; 1.
DR   SUPFAM; SSF89733; SSF89733; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; NAD; Oxidoreductase.
FT   CHAIN           1..332
FT                   /note="2,3-diketo-L-gulonate reductase"
FT                   /id="PRO_1000083850"
FT   ACT_SITE        44
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00820"
FT   BINDING         168..174
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00820"
FT   BINDING         224..225
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00820"
FT   BINDING         304..306
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00820"
SQ   SEQUENCE   332 AA;  36573 MW;  A411EB14D5C03DF7 CRC64;
     MKVTFEQLKA AFNRVLISRG VDSETADACA EMFARTTESG VYSHGVNRFP RFIQQLENGD
     IIPDAQPKRI TSLGAIEQWD AQRSIGNLTA KKMMDRAIEL AADHGIGLVA LRNANHWMRG
     GSYGWQAAEK GYIGICWTNS IAVMPPWGAK ECRIGTNPLI VAIPSTPITM VDMSMSMFSY
     GMLEVNRLAG RQLPVDGGFD DEGNLTKEPG VIEKNRRILP MGYWKGSGMS IVLDMIATLL
     SDGASVAEVT QDNSDEYGIS QIFIAIEVDK LIDGPTRDAK LQRIMDYVTS AERADENQAI
     RLPGHEFTTL LAENRRNGIT VDDSVWAKIQ AL