ID A0PGG8_OREDE Unreviewed; 220 AA. AC A0PGG8; DT 09-JAN-2007, integrated into UniProtKB/TrEMBL. DT 09-JAN-2007, sequence version 1. DT 24-JUL-2024, entry version 60. 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:AAV68590.1}; OS Oreophasis derbianus (Horned guan). OG Mitochondrion {ECO:0000313|EMBL:AAV68590.1}. OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; OC Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda; OC Coelurosauria; Aves; Neognathae; Galloanserae; Galliformes; Cracidae; OC Oreophasis. OX NCBI_TaxID=125067 {ECO:0000313|EMBL:AAV68590.1}; RN [1] {ECO:0000313|EMBL:AAV68590.1} RP NUCLEOTIDE SEQUENCE. RA Frank K., Estudillo-Lopez J., Garcia-Koch A.M., Ongay-Larios L., Pinero D.; RT "Morphological and behavioral data support molecular phylogeny of RT Cracids."; RL Submitted (JUN-2004) to the EMBL/GenBank/DDBJ databases. RN [2] {ECO:0000313|EMBL:AAV68590.1} RP NUCLEOTIDE SEQUENCE. RA Frank-Hoeflich K., Silveira F., Estudillo-Lopez J., Garcia-Koch A.M., RA Ongay-Larios L., Pinero D.; RT "Increased taxon and character sampling reveals novel intergeneric RT relationships in the Cracidae (Aves: Galliformes)."; RL J. Zool. Syst. Evol. Res. 45:242-254(2007). 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 -!- SIMILARITY: Belongs to the cytochrome b family. {ECO:0000256|PROSITE- CC ProRule:PRU00967}. 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; AY659805; AAV68590.1; -; Genomic_DNA. DR AlphaFoldDB; A0PGG8; -. DR GO; GO:0005750; C:mitochondrial respiratory chain complex III; IEA:TreeGrafter. DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW. DR GO; GO:0008121; F:ubiquinol-cytochrome-c reductase activity; IEA:TreeGrafter. DR GO; GO:0006122; P:mitochondrial electron transport, ubiquinol to cytochrome c; IEA:TreeGrafter. DR CDD; cd00284; Cytochrome_b_N; 1. DR InterPro; IPR005798; Cyt_b/b6_C. DR InterPro; IPR005797; Cyt_b/b6_N. DR InterPro; IPR027387; Cytb/b6-like_sf. DR InterPro; IPR048259; Cytochrome_b_N_euk/bac. DR InterPro; IPR016174; Di-haem_cyt_TM. DR PANTHER; PTHR19271; CYTOCHROME B; 1. DR PANTHER; PTHR19271:SF16; CYTOCHROME B; 1. DR Pfam; PF00033; Cytochrome_B; 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, ECO:0000256|PROSITE- KW ProRule:PRU00967}; Heme {ECO:0000256|ARBA:ARBA00022617}; KW Iron {ECO:0000256|ARBA:ARBA00023004}; KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|PROSITE- KW ProRule:PRU00967}; Metal-binding {ECO:0000256|ARBA:ARBA00022723}; KW Mitochondrion {ECO:0000256|ARBA:ARBA00023128, ECO:0000313|EMBL:AAV68590.1}; KW Mitochondrion inner membrane {ECO:0000256|ARBA:ARBA00022792}; KW Respiratory chain {ECO:0000256|ARBA:ARBA00022660}; KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|PROSITE- KW ProRule:PRU00967}; KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989, ECO:0000256|PROSITE- KW ProRule:PRU00967}; KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|PROSITE- KW ProRule:PRU00967}; Ubiquinone {ECO:0000256|ARBA:ARBA00023075}. FT TRANSMEM 37..58 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 70..88 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 94..112 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 133..154 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 184..200 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT DOMAIN 1..164 FT /note="Cytochrome b/b6 N-terminal region profile" FT /evidence="ECO:0000259|PROSITE:PS51002" FT DOMAIN 165..220 FT /note="Cytochrome b/b6 C-terminal region profile" FT /evidence="ECO:0000259|PROSITE:PS51003" FT NON_TER 1 FT /evidence="ECO:0000313|EMBL:AAV68590.1" FT NON_TER 220 FT /evidence="ECO:0000313|EMBL:AAV68590.1" SQ SEQUENCE 220 AA; 24533 MW; F758D68BB4295B53 CRC64; LTGLLLAMHY TADTTLAFSS VAHTCRNVQY GWLIRNLHAN GASFFFICIY LHIGRGLYYG SYLYKETWNT GVILLLVLMA TAFVGYVLPW GQMSFWGATV ITNLFSAIPY IGQTLVEWAW GGFSVDNPTL TRFFALHFLL PFAIAGITVI HLTFLHESGS NNPLGLTSNC DKIPFHPYFS LKDILGFSLM FIPLLTPAFF HPNLLGDPEN FTPANPLVTP //