Lineage for Family f.21.1.2: Cytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)

  1. Root: SCOPe 2.07
  2. 2575216Class f: Membrane and cell surface proteins and peptides [56835] (60 folds)
  3. 2577736Fold f.21: Heme-binding four-helical bundle [81344] (3 superfamilies)
    core: four transmembrane helices, up-and-down bundle, binds one or two heme groups in between the helices
  4. 2577737Superfamily f.21.1: Transmembrane di-heme cytochromes [81342] (2 families) (S)
    Three of the four heme-ligands are conserved between the two families; both heme groups bind similarly but not identically
  5. 2577743Family f.21.1.2: Cytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) [81642] (3 proteins)
    a part (domain) of a larger mitochondrial cytochrome b subunit, separate subunit in plants and cyanobacteria

Proteins:

  1. 2577744Cytochrome b6 subunit of the cytochrome b6f complex [103498] (2 species)
    1. 2577745Species Green alga (Chlamydomonas reinhardtii) [TaxId:3055] [103500] (1 PDB entry)
    2. Species Mastigocladus laminosus [TaxId:83541] [103499] (4 PDB entries)
  2. 2577754Mitochondrial cytochrome b subunit, N-terminal domain [81641] (3 species)
    also includes extra transmembrane (linker) helix absent in plants and cyanobacteria subunits
    1. Species Baker's yeast (Saccharomyces cerevisiae) [TaxId:4932] [81640] (5 PDB entries)
    2. 2577762Species Chicken (Gallus gallus) [TaxId:9031] [81639] (8 PDB entries)
    3. 2577776Species Cow (Bos taurus) [TaxId:9913] [81638] (18 PDB entries)
      Uniprot P00157
  3. 2577799automated matches [196844] (6 species)
    not a true protein
    1. 2577800Species Baker's yeast (Saccharomyces cerevisiae) [TaxId:559292] [257467] (1 PDB entry)
    2. 2577802Species Chicken (Gallus gallus) [TaxId:9031] [255856] (4 PDB entries)
    3. Species Cow (Bos taurus) [TaxId:9913] [254895] (2 PDB entries)
    4. 2577813Species Mastigocladus laminosus [TaxId:83541] [196845] (5 PDB entries)
    5. 2577820Species Nostoc sp. [TaxId:103690] [255731] (2 PDB entries)
    6. 2577823Species Saccharomyces cerevisiae [TaxId:764097] [255785] (2 PDB entries)

More info for Family f.21.1.2: Cytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)

Timeline for Family f.21.1.2: Cytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase):