ID   E3WH87_EGRGA            Unreviewed;       156 AA.
AC   E3WH87;
DT   08-FEB-2011, integrated into UniProtKB/TrEMBL.
DT   08-FEB-2011, sequence version 1.
DT   27-MAR-2024, entry version 35.
DE   RecName: Full=Cytochrome b {ECO:0000256|ARBA:ARBA00013531};
DE   AltName: Full=Complex III subunit 3 {ECO:0000256|ARBA:ARBA00031681};
DE   AltName: Full=Complex III subunit III {ECO:0000256|ARBA:ARBA00032600};
DE   AltName: Full=Cytochrome b-c1 complex subunit 3 {ECO:0000256|ARBA:ARBA00029812};
DE   AltName: Full=Ubiquinol-cytochrome-c reductase complex cytochrome b subunit {ECO:0000256|ARBA:ARBA00032818};
DE   Flags: Fragment;
GN   Name=cytb {ECO:0000313|EMBL:BAJ34729.1};
OS   Egretta garzetta (Little egret).
OG   Mitochondrion {ECO:0000313|EMBL:BAJ34729.1}.
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda;
OC   Coelurosauria; Aves; Neognathae; Pelecaniformes; Ardeidae; Egretta.
OX   NCBI_TaxID=188379 {ECO:0000313|EMBL:BAJ34729.1};
RN   [1] {ECO:0000313|EMBL:BAJ34729.1}
RP   NUCLEOTIDE SEQUENCE.
RC   STRAIN=K132atr {ECO:0000313|EMBL:BAJ34729.1};
RC   TISSUE=Blood {ECO:0000313|EMBL:BAJ34729.1};
RA   Kim K., Kanesaka H., Tsuda Y.;
RT   "Egretta garzetta cytochrome b gene, partial sequence.";
RL   Submitted (NOV-2010) 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   -!- COFACTOR:
CC       Name=heme b; Xref=ChEBI:CHEBI:60344;
CC         Evidence={ECO:0000256|ARBA:ARBA00001970};
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}.
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DR   EMBL; AB600557; BAJ34729.1; -; Genomic_DNA.
DR   AlphaFoldDB; E3WH87; -.
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-KW.
DR   CDD; cd00290; cytochrome_b_C; 1.
DR   InterPro; IPR005798; Cyt_b/b6_C.
DR   InterPro; IPR036150; Cyt_b/b6_C_sf.
DR   InterPro; IPR027387; Cytb/b6-like_sf.
DR   InterPro; IPR048260; Cytochrome_b_C_euk/bac.
DR   PANTHER; PTHR19271; CYTOCHROME B; 1.
DR   PANTHER; PTHR19271:SF16; CYTOCHROME B; 1.
DR   Pfam; PF00032; Cytochrom_B_C; 1.
DR   SUPFAM; SSF81648; a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase); 1.
DR   PROSITE; PS51003; CYTB_CTER; 1.
PE   4: Predicted;
KW   Electron transport {ECO:0000256|ARBA:ARBA00022982};
KW   Heme {ECO:0000256|ARBA:ARBA00022617}; Iron {ECO:0000256|ARBA:ARBA00023004};
KW   Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|SAM:Phobius};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW   Mitochondrion {ECO:0000256|ARBA:ARBA00023128, ECO:0000313|EMBL:BAJ34729.1};
KW   Mitochondrion inner membrane {ECO:0000256|ARBA:ARBA00022792};
KW   Respiratory chain {ECO:0000256|ARBA:ARBA00022660};
KW   Signal {ECO:0000256|SAM:SignalP};
KW   Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|SAM:Phobius};
KW   Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW   ECO:0000256|SAM:Phobius}; Transport {ECO:0000256|ARBA:ARBA00022448};
KW   Ubiquinone {ECO:0000256|ARBA:ARBA00023075}.
FT   SIGNAL          1..20
FT                   /evidence="ECO:0000256|SAM:SignalP"
FT   CHAIN           21..156
FT                   /note="Cytochrome b"
FT                   /evidence="ECO:0000256|SAM:SignalP"
FT                   /id="PRO_5003183064"
FT   TRANSMEM        65..85
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        97..117
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        123..143
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   DOMAIN          1..156
FT                   /note="Cytochrome b/b6 C-terminal region profile"
FT                   /evidence="ECO:0000259|PROSITE:PS51003"
FT   NON_TER         1
FT                   /evidence="ECO:0000313|EMBL:BAJ34729.1"
FT   NON_TER         156
FT                   /evidence="ECO:0000313|EMBL:BAJ34729.1"
SQ   SEQUENCE   156 AA;  17414 MW;  7CE2407289D11941 CRC64;
     FSTKDILGFM LMLLPLTTLA LFSPNLLGDP ENFTPANPLV TPPHIKPEWY FLFAYAILRS
     IPNKLGGVLA LAASVLILFL IPLLHKSKQR TLAFRPLSQL LFWTLVANLL ILTWVGSQPV
     EHPFIIIGQL ASITYFTILL ILFPATGALE NKMLNF
//