ID Q5CCD1_CHAPW Unreviewed; 108 AA. AC Q5CCD1; DT 12-APR-2005, integrated into UniProtKB/TrEMBL. DT 12-APR-2005, sequence version 1. DT 24-JAN-2024, entry version 53. 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:CAG38100.1}; OS Chaetodon pelewensis (Sunset butterflyfish). OG Mitochondrion {ECO:0000313|EMBL:CAG38100.1}. OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; OC Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata; OC Eupercaria; Chaetodontiformes; Chaetodontidae; Chaetodon. OX NCBI_TaxID=39039 {ECO:0000313|EMBL:CAG38100.1}; RN [1] {ECO:0000313|EMBL:CAG38100.1} RP NUCLEOTIDE SEQUENCE. RC TISSUE=Heart {ECO:0000313|EMBL:CAG38100.1}; RA Littlewood D.T.J., McDonald S.M., Gill A.C., Cribb T.H.; RT "Molecular phylogenetics of Chaetodon and the Chaetodontidae (Teleostei: RT Perciformes) with reference to morphology."; RL Submitted (JUN-2004) 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 -!- 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 --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; AJ748301; CAG38100.1; -; Genomic_DNA. 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:0022904; P:respiratory electron transport chain; IEA:InterPro. DR InterPro; IPR005797; Cyt_b/b6_N. DR InterPro; IPR027387; Cytb/b6-like_sf. DR InterPro; IPR016174; Di-haem_cyt_TM. DR PANTHER; PTHR19271; CYTOCHROME B; 1. DR PANTHER; PTHR19271:SF37; CYTOCHROME B; 1. DR Pfam; PF00033; Cytochrome_B; 1. DR SUPFAM; SSF81342; Transmembrane di-heme cytochromes; 1. DR PROSITE; PS51002; CYTB_NTER; 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:CAG38100.1}; KW Mitochondrion inner membrane {ECO:0000256|ARBA:ARBA00022792}; KW Respiratory chain {ECO:0000256|ARBA:ARBA00022660}; 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 TRANSMEM 6..31 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 52..73 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 88..107 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT DOMAIN 1..108 FT /note="Cytochrome b/b6 N-terminal region profile" FT /evidence="ECO:0000259|PROSITE:PS51002" FT NON_TER 1 FT /evidence="ECO:0000313|EMBL:CAG38100.1" FT NON_TER 108 FT /evidence="ECO:0000313|EMBL:CAG38100.1" SQ SEQUENCE 108 AA; 12141 MW; D5488D6BC525162A CRC64; HXSAWWNFGS LLGLCLIVQI LTGLFLAMHY TADVATAFSS VAHICRDVNY GWLIRNLHAN GASMFFVCIY MHIGRGLYYG SYLYKETWNI GVVLLLLVMA TAFVGYVL //