QCR7_DICDI
ID QCR7_DICDI Reviewed; 109 AA.
AC Q54M82;
DT 29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT 24-MAY-2005, sequence version 1.
DT 25-MAY-2022, entry version 79.
DE RecName: Full=Probable cytochrome b-c1 complex subunit 7;
DE AltName: Full=Ubiquinol-cytochrome c reductase complex subunit 7;
GN ORFNames=DDB_G0286171;
OS Dictyostelium discoideum (Slime mold).
OC Eukaryota; Amoebozoa; Evosea; Eumycetozoa; Dictyostelia; Dictyosteliales;
OC Dictyosteliaceae; Dictyostelium.
OX NCBI_TaxID=44689;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AX4;
RX PubMed=15875012; DOI=10.1038/nature03481;
RA Eichinger L., Pachebat J.A., Gloeckner G., Rajandream M.A., Sucgang R.,
RA Berriman M., Song J., Olsen R., Szafranski K., Xu Q., Tunggal B.,
RA Kummerfeld S., Madera M., Konfortov B.A., Rivero F., Bankier A.T.,
RA Lehmann R., Hamlin N., Davies R., Gaudet P., Fey P., Pilcher K., Chen G.,
RA Saunders D., Sodergren E.J., Davis P., Kerhornou A., Nie X., Hall N.,
RA Anjard C., Hemphill L., Bason N., Farbrother P., Desany B., Just E.,
RA Morio T., Rost R., Churcher C.M., Cooper J., Haydock S., van Driessche N.,
RA Cronin A., Goodhead I., Muzny D.M., Mourier T., Pain A., Lu M., Harper D.,
RA Lindsay R., Hauser H., James K.D., Quiles M., Madan Babu M., Saito T.,
RA Buchrieser C., Wardroper A., Felder M., Thangavelu M., Johnson D.,
RA Knights A., Loulseged H., Mungall K.L., Oliver K., Price C., Quail M.A.,
RA Urushihara H., Hernandez J., Rabbinowitsch E., Steffen D., Sanders M.,
RA Ma J., Kohara Y., Sharp S., Simmonds M.N., Spiegler S., Tivey A.,
RA Sugano S., White B., Walker D., Woodward J.R., Winckler T., Tanaka Y.,
RA Shaulsky G., Schleicher M., Weinstock G.M., Rosenthal A., Cox E.C.,
RA Chisholm R.L., Gibbs R.A., Loomis W.F., Platzer M., Kay R.R.,
RA Williams J.G., Dear P.H., Noegel A.A., Barrell B.G., Kuspa A.;
RT "The genome of the social amoeba Dictyostelium discoideum.";
RL Nature 435:43-57(2005).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC STRAIN=AX4;
RX PubMed=15010511; DOI=10.1093/nar/gkh262;
RA Urushihara H., Morio T., Saito T., Kohara Y., Koriki E., Ochiai H.,
RA Maeda M., Williams J.G., Takeuchi I., Tanaka Y.;
RT "Analyses of cDNAs from growth and slug stages of Dictyostelium
RT discoideum.";
RL Nucleic Acids Res. 32:1647-1653(2004).
CC -!- FUNCTION: Component of the ubiquinol-cytochrome c oxidoreductase, a
CC multisubunit transmembrane complex that is part of the mitochondrial
CC electron transport chain which drives oxidative phosphorylation. The
CC respiratory chain contains 3 multisubunit complexes succinate
CC dehydrogenase (complex II, CII), ubiquinol-cytochrome c oxidoreductase
CC (cytochrome b-c1 complex, complex III, CIII) and cytochrome c oxidase
CC (complex IV, CIV), that cooperate to transfer electrons derived from
CC NADH and succinate to molecular oxygen, creating an electrochemical
CC gradient over the inner membrane that drives transmembrane transport
CC and the ATP synthase. The cytochrome b-c1 complex catalyzes electron
CC transfer from ubiquinol to cytochrome c, linking this redox reaction to
CC translocation of protons across the mitochondrial inner membrane, with
CC protons being carried across the membrane as hydrogens on the quinol.
CC In the process called Q cycle, 2 protons are consumed from the matrix,
CC 4 protons are released into the intermembrane space and 2 electrons are
CC passed to cytochrome c. {ECO:0000250|UniProtKB:P00128}.
CC -!- SUBUNIT: Component of the ubiquinol-cytochrome c oxidoreductase
CC (cytochrome b-c1 complex, complex III, CIII), a multisubunit enzyme
CC composed of 3 respiratory subunits cytochrome b, cytochrome c1 and
CC Rieske protein, 2 core protein subunits, and additional low-molecular
CC weight protein subunits. The complex exists as an obligatory dimer and
CC forms supercomplexes (SCs) in the inner mitochondrial membrane with
CC cytochrome c oxidase (complex IV, CIV). {ECO:0000250|UniProtKB:P00128}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC {ECO:0000250|UniProtKB:P00128}; Peripheral membrane protein
CC {ECO:0000250|UniProtKB:P00128}; Matrix side
CC {ECO:0000250|UniProtKB:P00128}.
CC -!- SIMILARITY: Belongs to the UQCRB/QCR7 family. {ECO:0000305}.
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DR EMBL; AAFI02000085; EAL64378.1; -; Genomic_DNA.
DR EMBL; AU261829; -; NOT_ANNOTATED_CDS; mRNA.
DR RefSeq; XP_637866.1; XM_632774.1.
DR AlphaFoldDB; Q54M82; -.
DR SMR; Q54M82; -.
DR STRING; 44689.DDB0267110; -.
DR PaxDb; Q54M82; -.
DR EnsemblProtists; EAL64378; EAL64378; DDB_G0286171.
DR GeneID; 8625463; -.
DR KEGG; ddi:DDB_G0286171; -.
DR dictyBase; DDB_G0286171; uqcrb.
DR eggNOG; ENOG502RI1R; Eukaryota.
DR HOGENOM; CLU_2188923_0_0_1; -.
DR InParanoid; Q54M82; -.
DR OMA; KSSWVEY; -.
DR PhylomeDB; Q54M82; -.
DR Reactome; R-DDI-611105; Respiratory electron transport.
DR PRO; PR:Q54M82; -.
DR Proteomes; UP000002195; Chromosome 4.
DR GO; GO:0005750; C:mitochondrial respiratory chain complex III; IBA:GO_Central.
DR GO; GO:0006122; P:mitochondrial electron transport, ubiquinol to cytochrome c; IBA:GO_Central.
DR Gene3D; 1.10.1090.10; -; 1.
DR InterPro; IPR003197; QCR7.
DR InterPro; IPR036544; QCR7_sf.
DR PANTHER; PTHR12022; PTHR12022; 1.
DR Pfam; PF02271; UCR_14kD; 1.
DR SUPFAM; SSF81524; SSF81524; 1.
PE 3: Inferred from homology;
KW Electron transport; Membrane; Mitochondrion; Mitochondrion inner membrane;
KW Reference proteome; Respiratory chain; Transport.
FT CHAIN 1..109
FT /note="Probable cytochrome b-c1 complex subunit 7"
FT /id="PRO_0000330320"
SQ SEQUENCE 109 AA; 13274 MW; BC04FE2EEA721273 CRC64;
MSILKLLPQS FVSSLQKSSW VEYRKMGLYF ADLYNNTEAN QEVYRRLPFD VLVQRDRRLR
VAIDLSLKKQ LLPESEWSDN QKDFEFTEMI EKYTEQVERE NDLRRSFRE
