ID   MQO_KLEPN               Reviewed;         115 AA.
AC   O32719;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1998, sequence version 1.
DT   25-MAY-2022, entry version 62.
DE   RecName: Full=Probable malate:quinone oxidoreductase;
DE            EC=1.1.5.4;
DE   AltName: Full=MQO;
DE   AltName: Full=Malate dehydrogenase [quinone];
DE   Flags: Fragment;
GN   Name=mqo;
OS   Klebsiella pneumoniae.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Klebsiella/Raoultella group; Klebsiella.
OX   NCBI_TaxID=573;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=9208947; DOI=10.1111/j.1432-1033.1997.00530.x;
RA   Hoenke S., Schmid M., Dimroth P.;
RT   "Sequence of a gene cluster from Klebsiella pneumoniae encoding malonate
RT   decarboxylase and expression of the enzyme in Escherichia coli.";
RL   Eur. J. Biochem. 246:530-538(1997).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(S)-malate + a quinone = a quinol + oxaloacetate;
CC         Xref=Rhea:RHEA:46012, ChEBI:CHEBI:15589, ChEBI:CHEBI:16452,
CC         ChEBI:CHEBI:24646, ChEBI:CHEBI:132124; EC=1.1.5.4;
CC   -!- COFACTOR:
CC       Name=FAD; Xref=ChEBI:CHEBI:57692; Evidence={ECO:0000250};
CC   -!- PATHWAY: Carbohydrate metabolism; tricarboxylic acid cycle;
CC       oxaloacetate from (S)-malate (quinone route): step 1/1.
CC   -!- SIMILARITY: Belongs to the MQO family. {ECO:0000305}.
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DR   EMBL; U95087; AAC45463.1; -; Genomic_DNA.
DR   AlphaFoldDB; O32719; -.
DR   UniPathway; UPA00223; UER01008.
DR   GO; GO:0052589; F:malate dehydrogenase (menaquinone) activity; IEA:UniProtKB-EC.
DR   GO; GO:0008924; F:malate dehydrogenase (quinone) activity; IEA:UniProtKB-EC.
DR   GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-UniPathway.
DR   InterPro; IPR006231; MQO.
DR   Pfam; PF06039; Mqo; 1.
PE   3: Inferred from homology;
KW   FAD; Flavoprotein; Oxidoreductase; Tricarboxylic acid cycle.
FT   CHAIN           <1..115
FT                   /note="Probable malate:quinone oxidoreductase"
FT                   /id="PRO_0000128719"
FT   REGION          88..115
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   NON_TER         1
SQ   SEQUENCE   115 AA;  12198 MW;  27D88C7E287CFF58 CRC64;
     GTEVVVDQQK TISALLGASP GASTAAPITL NVLKQMFPQQ FNSPEWQSRI HAIVPSYGQK
     LNGNVALTQQ VWDDTAATLQ LTKPPVIQMP AAAPTATAKP AETPREASPQ HDMAL