ID CYB_ALLMA Reviewed; 382 AA. AC Q37395; DT 06-DEC-2005, integrated into UniProtKB/Swiss-Prot. DT 01-NOV-1996, sequence version 1. DT 24-NOV-2009, entry version 51. DE RecName: Full=Cytochrome b; DE AltName: Full=Ubiquinol-cytochrome-c reductase complex cytochrome b subunit; DE AltName: Full=Cytochrome b-c1 complex subunit 3; DE AltName: Full=Complex III subunit 3; DE AltName: Full=Complex III subunit III; GN Name=cob; Synonyms=cytB; OS Allomyces macrogynus. OG Mitochondrion. OC Eukaryota; Fungi; Blastocladiomycota; Blastocladiomycetes; OC Blastocladiales; Blastocladiaceae; Allomyces. OX NCBI_TaxID=28583; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RX MEDLINE=96226032; PubMed=8636971; DOI=10.1006/jmbi.1996.0056; RA Paquin B., Lang B.F.; RT "The mitochondrial DNA of Allomyces macrogynus: the complete genomic RT sequence from an ancestral fungus."; RL J. Mol. Biol. 255:688-701(1996). CC -!- FUNCTION: Component of the ubiquinol-cytochrome c reductase CC complex (complex III or cytochrome b-c1 complex), which is a CC respiratory chain that generates an electrochemical potential CC coupled to ATP synthesis (By similarity). CC -!- COFACTOR: Binds 2 heme groups non-covalently (By similarity). CC -!- SUBUNIT: Fungal cytochrome b-c1 complex contains 10 subunits; 3 CC respiratory subunits, 2 core proteins and 5 low-molecular weight CC proteins. Cytochrome b-c1 complex is a homodimer (By similarity). CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane; Multi-pass CC membrane protein (By similarity). CC -!- MISCELLANEOUS: Heme 1 (or BL or b562) is low-potential and absorbs CC at about 562 nm, and heme 2 (or BH or b566) is high-potential and CC absorbs at about 566 nm (By similarity). CC -!- SIMILARITY: Belongs to the cytochrome b family. 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; U41288; AAC49221.1; -; Genomic_DNA. DR PIR; S63638; S63638. DR RefSeq; NP_043720.1; -. DR GeneID; 801884; -. DR GO; GO:0016021; C:integral to membrane; IEA:UniProtKB-SubCell. DR GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-KW. DR GO; GO:0070469; C:respiratory chain; IEA:UniProtKB-KW. DR GO; GO:0009055; F:electron carrier activity; IEA:InterPro. DR GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-KW. DR GO; GO:0016491; F:oxidoreductase activity; IEA:InterPro. DR GO; GO:0022904; P:respiratory electron transport chain; IEA:InterPro. DR GO; GO:0006810; P:transport; IEA:UniProtKB-KW. DR InterPro; IPR016175; Cyt_b/b6. DR InterPro; IPR005798; Cyt_b/b6_C. DR InterPro; IPR005797; Cyt_b/b6_N. DR InterPro; IPR016174; Di-haem_cyt_TM. DR Gene3D; G3DSA:1.20.810.10; Cytochrome_b/b6; 1. DR PANTHER; PTHR19271; Cytochrome_b/b6; 1. DR Pfam; PF00032; Cytochrom_B_C; 1. DR Pfam; PF00033; Cytochrom_B_N; 1. DR PROSITE; PS51003; CYTB_CTER; 1. DR PROSITE; PS51002; CYTB_NTER; 1. PE 3: Inferred from homology; KW Electron transport; Heme; Iron; Membrane; Metal-binding; KW Mitochondrion; Mitochondrion inner membrane; Respiratory chain; KW Transmembrane; Transport. FT CHAIN 1 382 Cytochrome b. FT /FTId=PRO_0000061733. FT TRANSMEM 32 52 Potential. FT TRANSMEM 75 95 Potential. FT TRANSMEM 111 131 Potential. FT TRANSMEM 151 171 Potential. FT TRANSMEM 179 199 Potential. FT TRANSMEM 230 250 Potential. FT TRANSMEM 262 282 Potential. FT TRANSMEM 289 309 Potential. FT TRANSMEM 321 341 Potential. FT TRANSMEM 354 374 Potential. FT METAL 82 82 Iron 1 (heme b562 axial ligand) (By FT similarity). FT METAL 96 96 Iron 2 (heme b566 axial ligand) (By FT similarity). FT METAL 183 183 Iron 1 (heme b562 axial ligand) (By FT similarity). FT METAL 197 197 Iron 2 (heme b566 axial ligand) (By FT similarity). SQ SEQUENCE 382 AA; 43468 MW; A892A1A46A6915FA CRC64; MRFLKSHPVL SLANSFLIDS PLPSNITYLW NFGSLLGLCL VIQIVTGVTL AMHYAPSTSL AFVSVEHIMR DVFYGWLIRY AHANGASFFF ICVYIHMARG LYFNSYTKPR VLLWSVGVVI YILMMATAFL GYVLPWGQMS FWGATVITNL LSAIPYIGTA LVEFVWGGFS VDNATLNRFF SLHYLLPFIL AALVVVHLIA LHEHGSNNPL GISSKVDRLP FHPYFTYKDL VGFFVFFLIF FGFVFYQPNL MGHPDNYIPA NPLVTPVSIV PEWYFLPFYA ILRAIPSKLG GVIGMFGALL ILLALPWLET SKVRGAGFRP VMKFFFWLFV VNFFLLMYCG GQHAEEPFIT LSRICTAYYF MYFLVIIPVI GHLENLLHRC RD //