ID A0A1P8NNT1_9SALA Unreviewed; 243 AA. AC A0A1P8NNT1; DT 12-APR-2017, integrated into UniProtKB/TrEMBL. DT 12-APR-2017, sequence version 1. DT 14-DEC-2022, entry version 15. DE RecName: Full=Cytochrome b {ECO:0000256|ARBA:ARBA00013531, ECO:0000256|RuleBase:RU362117}; DE Flags: Fragment; OS Eurycea lucifuga (cave salamander). OG Mitochondrion {ECO:0000313|EMBL:APX41184.1}. OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia; OC Batrachia; Caudata; Salamandroidea; Plethodontidae; Hemidactyliinae; OC Eurycea. OX NCBI_TaxID=422567 {ECO:0000313|EMBL:APX41184.1}; RN [1] {ECO:0000313|EMBL:APX41184.1} RP NUCLEOTIDE SEQUENCE. RC STRAIN=BF7_18_2 {ECO:0000313|EMBL:APX41184.1}; RC TISSUE=Tail clips {ECO:0000313|EMBL:APX41184.1}; RA Edgington H.A., Ingram C.M., Taylor D.R.; RT "Phylogeography implicates Pleistocene divergence in a cave-dwelling RT salamander lineage, Eurycea lucifuga."; RL Submitted (APR-2016) 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}. 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; KX148759; APX41184.1; -; Genomic_DNA. DR AlphaFoldDB; A0A1P8NNT1; -. 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; cd00284; Cytochrome_b_N; 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 22..43 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU362117" FT TRANSMEM 55..73 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU362117" FT TRANSMEM 79..97 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU362117" FT TRANSMEM 118..139 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU362117" FT TRANSMEM 169..191 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU362117" FT TRANSMEM 212..242 FT /note="Helical" FT /evidence="ECO:0000256|RuleBase:RU362117" FT DOMAIN 1..149 FT /note="CYTB_NTER" FT /evidence="ECO:0000259|PROSITE:PS51002" FT DOMAIN 150..243 FT /note="CYTB_CTER" FT /evidence="ECO:0000259|PROSITE:PS51003" FT NON_TER 1 FT /evidence="ECO:0000313|EMBL:APX41184.1" FT NON_TER 243 FT /evidence="ECO:0000313|EMBL:APX41184.1" SQ SEQUENCE 243 AA; 27238 MW; EA65AA3B167D4344 CRC64; SAFSSVAHIC RDVNYGWLVR SIHTNGASIF FICIYLHIGR GLYYGSYMFK ETWNIGVILL FLVMATAFVG YVLPWGQMSF WGATVITNLL SAIPYLGDTL VQWIWGGFSV EKATLTRFFA FHFILPFMIA GASIVHLLFL HETGSNNPTG LNSDPDKIPF HPYYSYKDLL GLLVMLLLLI IISLLTPNLL GDPENFTPAN PLITPPHIQP EWYFLFAYAI LRSIPNKLGG VMALLASILI LMI //