ID   DHSC_RICBR              Reviewed;         125 AA.
AC   Q1RHB5;
DT   20-MAR-2007, integrated into UniProtKB/Swiss-Prot.
DT   16-MAY-2006, sequence version 1.
DT   27-MAR-2024, entry version 104.
DE   RecName: Full=Succinate dehydrogenase cytochrome b556 subunit;
DE            Short=Cytochrome b-556;
GN   Name=sdhC; OrderedLocusNames=RBE_1168;
OS   Rickettsia bellii (strain RML369-C).
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; belli group.
OX   NCBI_TaxID=336407;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RML369-C;
RX   PubMed=16703114; DOI=10.1371/journal.pgen.0020076;
RA   Ogata H., La Scola B., Audic S., Renesto P., Blanc G., Robert C.,
RA   Fournier P.-E., Claverie J.-M., Raoult D.;
RT   "Genome sequence of Rickettsia bellii illuminates the role of amoebae in
RT   gene exchanges between intracellular pathogens.";
RL   PLoS Genet. 2:733-744(2006).
CC   -!- FUNCTION: Membrane-anchoring subunit of succinate dehydrogenase (SDH).
CC       {ECO:0000250}.
CC   -!- COFACTOR:
CC       Name=heme; Xref=ChEBI:CHEBI:30413; Evidence={ECO:0000250};
CC       Note=The heme is bound between the two transmembrane subunits.
CC       {ECO:0000250};
CC   -!- PATHWAY: Carbohydrate metabolism; tricarboxylic acid cycle.
CC   -!- SUBUNIT: Part of an enzyme complex containing four subunits: a
CC       flavoprotein, an iron-sulfur protein, plus two membrane-anchoring
CC       proteins, SdhC and SdhD. The complex can form homotrimers (By
CC       similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane; Multi-pass membrane protein.
CC   -!- SIMILARITY: Belongs to the cytochrome b560 family. {ECO:0000305}.
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DR   EMBL; CP000087; ABE05249.1; -; Genomic_DNA.
DR   RefSeq; WP_011477827.1; NC_007940.1.
DR   AlphaFoldDB; Q1RHB5; -.
DR   SMR; Q1RHB5; -.
DR   KEGG; rbe:RBE_1168; -.
DR   eggNOG; COG2009; Bacteria.
DR   HOGENOM; CLU_094691_3_1_5; -.
DR   OrthoDB; 9799441at2; -.
DR   UniPathway; UPA00223; -.
DR   Proteomes; UP000001951; Chromosome.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0045281; C:succinate dehydrogenase complex; IEA:InterPro.
DR   GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0016627; F:oxidoreductase activity, acting on the CH-CH group of donors; IEA:InterPro.
DR   GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-UniPathway.
DR   CDD; cd03499; SQR_TypeC_SdhC; 1.
DR   Gene3D; 1.20.1300.10; Fumarate reductase/succinate dehydrogenase, transmembrane subunit; 1.
DR   InterPro; IPR034804; SQR/QFR_C/D.
DR   InterPro; IPR018495; Succ_DH_cyt_bsu_CS.
DR   InterPro; IPR014314; Succ_DH_cytb556.
DR   InterPro; IPR000701; SuccDH_FuR_B_TM-su.
DR   NCBIfam; TIGR02970; succ_dehyd_cytB; 1.
DR   PANTHER; PTHR10978; SUCCINATE DEHYDROGENASE CYTOCHROME B560 SUBUNIT; 1.
DR   PANTHER; PTHR10978:SF5; SUCCINATE DEHYDROGENASE CYTOCHROME B560 SUBUNIT, MITOCHONDRIAL; 1.
DR   Pfam; PF01127; Sdh_cyt; 1.
DR   PIRSF; PIRSF000178; SDH_cyt_b560; 1.
DR   SUPFAM; SSF81343; Fumarate reductase respiratory complex transmembrane subunits; 1.
DR   PROSITE; PS01000; SDH_CYT_1; 1.
DR   PROSITE; PS01001; SDH_CYT_2; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Electron transport; Heme; Iron;
KW   Membrane; Metal-binding; Reference proteome; Transmembrane;
KW   Transmembrane helix; Transport; Tricarboxylic acid cycle.
FT   CHAIN           1..125
FT                   /note="Succinate dehydrogenase cytochrome b556 subunit"
FT                   /id="PRO_0000281050"
FT   TOPO_DOM        1..29
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000250"
FT   TRANSMEM        30..55
FT                   /note="Helical"
FT                   /evidence="ECO:0000250"
FT   TOPO_DOM        56..68
FT                   /note="Periplasmic"
FT                   /evidence="ECO:0000250"
FT   TRANSMEM        69..89
FT                   /note="Helical"
FT                   /evidence="ECO:0000250"
FT   TOPO_DOM        90..104
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000250"
FT   TRANSMEM        105..125
FT                   /note="Helical"
FT                   /evidence="ECO:0000250"
FT   BINDING         84
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_note="ligand shared with second transmembrane
FT                   subunit"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   125 AA;  14408 MW;  A9FD375B6905EF3E CRC64;
     MTKTKQEIYN KRPTSPHLTI YKPQISSTLS ILHRMTGVAL FFAVSILAWW FILSKFDSNY
     IKLANCCCII KICLILTSFA WFYHLCNGIR HLFWDIGLGF SIKAVNLTGW SVVICSVLFT
     ILLWV
//