ID CYB6_CHAGL STANDARD; PRT; 215 AA. AC Q8M9Z4; DT 15-SEP-2003 (Rel. 42, Created) DT 15-SEP-2003 (Rel. 42, Last sequence update) DT 15-SEP-2003 (Rel. 42, Last annotation update) DE Cytochrome b6. GN PETB. OS Chaetosphaeridium globosum. OG Chloroplast. OC Eukaryota; Viridiplantae; Streptophyta; Coleochaetales; OC Chaetosphaeridiaceae; Chaetosphaeridium. OX NCBI_TaxID=96477; RN [1] RP SEQUENCE FROM N.A. RC STRAIN=M1311; RX MEDLINE=22177139; PubMed=12161560; RA Turmel M., Otis C., Lemieux C.; RT "The chloroplast and mitochondrial genome sequences of the charophyte RT Chaetosphaeridium globosum: insights into the timing of the events RT that restructured organelle DNAs within the green algal lineage that RT led to land plants."; RL Proc. Natl. Acad. Sci. U.S.A. 99:11275-11280(2002). CC -!- FUNCTION: Component of the cytochrome b6/f complex which is part CC of the photosynthetic respiratory chain. CC -!- COFACTOR: Binds two heme groups non-covalently. Heme 1 (or BL or CC b562) is low-potential and absorbs at about 562, and heme 2 (or BH CC or b566) is high-potential and absorbs at about 566. CC -!- SUBUNIT: The main subunits of complex b6-f are: cytochrome b6, 17 CC kDa polypeptide (petD), cytochrome f and the Rieske protein. CC -!- SUBCELLULAR LOCATION: Integral membrane protein. Chloroplast. CC -!- SIMILARITY: Belongs to the cytochrome b family. PetB subfamily. 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; AF494278; AAM96527.1; -. DR HAMAP; MF_00633; -; 1. DR InterPro; IPR005797; Cytb_b6_N. DR Pfam; PF00033; cytochrome_b_N; 1. DR PROSITE; PS00192; CYTOCHROME_B_HEME; 1. KW Electron transport; Heme; Chloroplast; Photosynthesis; Transmembrane. FT TRANSMEM 32 52 POTENTIAL. FT TRANSMEM 90 110 POTENTIAL. FT TRANSMEM 116 136 POTENTIAL. FT TRANSMEM 186 206 POTENTIAL. FT METAL 86 86 IRON (HEME 1 AXIAL LIGAND) FT (BY SIMILARITY). FT METAL 100 100 IRON (HEME 2 AXIAL LIGAND) FT (BY SIMILARITY). FT METAL 187 187 IRON (HEME 1 AXIAL LIGAND) FT (BY SIMILARITY). FT METAL 202 202 IRON (HEME 2 AXIAL LIGAND) FT (BY SIMILARITY). SQ SEQUENCE 215 AA; 24230 MW; 2879F90589E0DDFA CRC64; MGKVYDWFEE RLEIQAIADD ISSKYVPPHV NIFYCLGGIT FTSFVIQVAS GFAMTFYYRP TVTEAFASVQ YIMTEVNFGW LIRSVHRWSA SMMVLMMILH IFRVYLTGGF KKPRELTWVT GVILSVLTVS FGVTGYSLPW DQVGYWAVKI VTGVPDAIPV IGSTVVELLR GSVSVGQSTL TRFYSLHTFV LPLLTAVFML MHFLMIRKQG ISGPL //