ID   FRDC_KLEP3              Reviewed;         131 AA.
AC   B5Y348;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   25-NOV-2008, sequence version 1.
DT   25-MAY-2022, entry version 56.
DE   RecName: Full=Fumarate reductase subunit C {ECO:0000255|HAMAP-Rule:MF_00708};
DE   AltName: Full=Fumarate reductase 15 kDa hydrophobic protein {ECO:0000255|HAMAP-Rule:MF_00708};
DE   AltName: Full=Quinol-fumarate reductase subunit C {ECO:0000255|HAMAP-Rule:MF_00708};
DE            Short=QFR subunit C {ECO:0000255|HAMAP-Rule:MF_00708};
GN   Name=frdC {ECO:0000255|HAMAP-Rule:MF_00708}; OrderedLocusNames=KPK_5117;
OS   Klebsiella pneumoniae (strain 342).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Klebsiella/Raoultella group; Klebsiella.
OX   NCBI_TaxID=507522;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=342;
RX   PubMed=18654632; DOI=10.1371/journal.pgen.1000141;
RA   Fouts D.E., Tyler H.L., DeBoy R.T., Daugherty S., Ren Q., Badger J.H.,
RA   Durkin A.S., Huot H., Shrivastava S., Kothari S., Dodson R.J., Mohamoud Y.,
RA   Khouri H., Roesch L.F.W., Krogfelt K.A., Struve C., Triplett E.W.,
RA   Methe B.A.;
RT   "Complete genome sequence of the N2-fixing broad host range endophyte
RT   Klebsiella pneumoniae 342 and virulence predictions verified in mice.";
RL   PLoS Genet. 4:E1000141-E1000141(2008).
CC   -!- FUNCTION: Two distinct, membrane-bound, FAD-containing enzymes are
CC       responsible for the catalysis of fumarate and succinate
CC       interconversion; fumarate reductase is used in anaerobic growth, and
CC       succinate dehydrogenase is used in aerobic growth. Anchors the
CC       catalytic components of the fumarate reductase complex to the cell
CC       inner membrane, binds quinones. {ECO:0000255|HAMAP-Rule:MF_00708}.
CC   -!- SUBUNIT: Part of an enzyme complex containing four subunits: a
CC       flavoprotein (FrdA), an iron-sulfur protein (FrdB), and two hydrophobic
CC       anchor proteins (FrdC and FrdD). {ECO:0000255|HAMAP-Rule:MF_00708}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00708}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00708}.
CC   -!- SIMILARITY: Belongs to the FrdC family. {ECO:0000255|HAMAP-
CC       Rule:MF_00708}.
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DR   EMBL; CP000964; ACI09492.1; -; Genomic_DNA.
DR   AlphaFoldDB; B5Y348; -.
DR   SMR; B5Y348; -.
DR   EnsemblBacteria; ACI09492; ACI09492; KPK_5117.
DR   KEGG; kpe:KPK_5117; -.
DR   HOGENOM; CLU_156492_0_0_6; -.
DR   OMA; MTATWWQ; -.
DR   OrthoDB; 2053102at2; -.
DR   Proteomes; UP000001734; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0045284; C:plasma membrane fumarate reductase complex; IEA:UniProtKB-UniRule.
DR   GO; GO:0000104; F:succinate dehydrogenase activity; IEA:UniProtKB-UniRule.
DR   CDD; cd00546; QFR_TypeD_subunitC; 1.
DR   Gene3D; 1.20.1300.10; -; 1.
DR   HAMAP; MF_00708; Fumarate_red_C; 1.
DR   InterPro; IPR003510; Fumarate_red_C.
DR   InterPro; IPR034804; SQR/QFR_C/D.
DR   Pfam; PF02300; Fumarate_red_C; 1.
DR   PIRSF; PIRSF000180; FrdC; 1.
DR   SUPFAM; SSF81343; SSF81343; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Membrane; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..131
FT                   /note="Fumarate reductase subunit C"
FT                   /id="PRO_1000132378"
FT   TRANSMEM        30..50
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00708"
FT   TRANSMEM        61..81
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00708"
FT   TRANSMEM        110..130
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00708"
SQ   SEQUENCE   131 AA;  14884 MW;  B067230AA9FE1BC2 CRC64;
     MTTKRKPYVR PMTSTWWKKL PFYRFYMVRE GTAVPTVWFS IVLIYGLFAL KHGAESWAGY
     IGFLQNPVVV ILNLITLAAA LLHTKTWFEL APKAANVIIK GEKMGPEPVI KGLWVVTAVV
     TVVILFVALF W