ID A0A5J6AM79_SPOCA Unreviewed; 220 AA.
AC A0A5J6AM79;
DT 11-DEC-2019, integrated into UniProtKB/TrEMBL.
DT 11-DEC-2019, sequence version 1.
DT 14-DEC-2022, entry version 12.
DE RecName: Full=Cytochrome b {ECO:0000256|ARBA:ARBA00013531, ECO:0000256|RuleBase:RU362117};
DE Flags: Fragment;
GN Name=cytb {ECO:0000313|EMBL:QCI61319.1};
OS Spondyliosoma cantharus (Black seabream) (Sparus cantharus).
OG Mitochondrion {ECO:0000313|EMBL:QCI61319.1}.
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC Eupercaria; Spariformes; Sparidae; Spondyliosoma.
OX NCBI_TaxID=50595 {ECO:0000313|EMBL:QCI61319.1};
RN [1] {ECO:0000313|EMBL:QCI61319.1}
RP NUCLEOTIDE SEQUENCE.
RA Neves A., Sequeira V., Vieira A.R., Paiva R.B., Paulo O.S., Gordo L.S.;
RT "Population structure of the black seabream, Spondyliosoma cantharus,
RT throughout the Eastern Atlantic Ocean and Mediterranean Sea.";
RL Submitted (JUN-2018) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Component of the ubiquinol-cytochrome c reductase complex
CC (complex III or cytochrome b-c1 complex) that is part of the
CC mitochondrial respiratory chain. The b-c1 complex mediates electron
CC transfer from ubiquinol to cytochrome c. Contributes to the generation
CC of a proton gradient across the mitochondrial membrane that is then
CC used for ATP synthesis. {ECO:0000256|ARBA:ARBA00002566,
CC ECO:0000256|RuleBase:RU362117}.
CC -!- COFACTOR:
CC Name=heme b; Xref=ChEBI:CHEBI:60344;
CC Evidence={ECO:0000256|RuleBase:RU362117};
CC Note=Binds 2 heme groups non-covalently.
CC {ECO:0000256|RuleBase:RU362117};
CC -!- SUBCELLULAR LOCATION: Membrane {ECO:0000256|ARBA:ARBA00004141}; Multi-
CC pass membrane protein {ECO:0000256|ARBA:ARBA00004141}. Mitochondrion
CC inner membrane {ECO:0000256|ARBA:ARBA00004448}; Multi-pass membrane
CC protein {ECO:0000256|ARBA:ARBA00004448}.
CC -!- SIMILARITY: Belongs to the cytochrome b family.
CC {ECO:0000256|RuleBase:RU362117}.
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DR EMBL; MH545820; QCI61319.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A5J6AM79; -.
DR GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW.
DR GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0022904; P:respiratory electron transport chain; IEA:InterPro.
DR CDD; cd00290; cytochrome_b_C; 1.
DR Gene3D; 1.20.810.10; -; 1.
DR InterPro; IPR005798; Cyt_b/b6_C.
DR InterPro; IPR036150; Cyt_b/b6_C_sf.
DR InterPro; IPR005797; Cyt_b/b6_N.
DR InterPro; IPR027387; Cytb/b6-like_sf.
DR InterPro; IPR016174; Di-haem_cyt_TM.
DR Pfam; PF00032; Cytochrom_B_C; 1.
DR Pfam; PF00033; Cytochrome_B; 1.
DR SUPFAM; SSF81648; a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase); 1.
DR SUPFAM; SSF81342; Transmembrane di-heme cytochromes; 1.
DR PROSITE; PS51003; CYTB_CTER; 1.
DR PROSITE; PS51002; CYTB_NTER; 1.
PE 3: Inferred from homology;
KW Electron transport {ECO:0000256|ARBA:ARBA00022982,
KW ECO:0000256|RuleBase:RU362117};
KW Heme {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|RuleBase:RU362117};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|RuleBase:RU362117};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|RuleBase:RU362117};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|RuleBase:RU362117};
KW Mitochondrion {ECO:0000256|ARBA:ARBA00023128,
KW ECO:0000256|RuleBase:RU362117};
KW Mitochondrion inner membrane {ECO:0000256|ARBA:ARBA00022792};
KW Respiratory chain {ECO:0000256|ARBA:ARBA00022660,
KW ECO:0000256|RuleBase:RU362117};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692,
KW ECO:0000256|RuleBase:RU362117};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|RuleBase:RU362117};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|RuleBase:RU362117};
KW Ubiquinone {ECO:0000256|ARBA:ARBA00023075}.
FT TRANSMEM 6..22
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU362117"
FT TRANSMEM 34..55
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU362117"
FT TRANSMEM 67..89
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU362117"
FT TRANSMEM 118..139
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU362117"
FT TRANSMEM 177..197
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU362117"
FT DOMAIN 1..98
FT /note="CYTB_NTER"
FT /evidence="ECO:0000259|PROSITE:PS51002"
FT DOMAIN 99..220
FT /note="CYTB_CTER"
FT /evidence="ECO:0000259|PROSITE:PS51003"
FT NON_TER 1
FT /evidence="ECO:0000313|EMBL:QCI61319.1"
FT NON_TER 220
FT /evidence="ECO:0000313|EMBL:QCI61319.1"
SQ SEQUENCE 220 AA; 24465 MW; EAAF5FEC98A4B91B CRC64;
TWNIVVILLL LVMGTAFVGY VLPWGQMSFW GATVITNLLS AVPYVGGTLV QWIWGGFSVD
NATLTRFFAF HFLLPFIVAA MTMLHLLFLH ETGSNNPLGL NSNTDKISFH PYFSYKDLLG
FAGLLILLTC LALFAPNLLG DPDNFTPANP LVTPPHIKPE WYFLFAYAIL RSIPNKLGGV
LALLASILVL LVVPILHTSK QRSLTFRPLT QFLFWTLIAN
//