Lineage for d1sqxc2 (1sqx C:2-260)

  1. Root: SCOP 1.73
  2. 744527Class f: Membrane and cell surface proteins and peptides [56835] (50 folds)
  3. 745424Fold 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. 745425Superfamily 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. 745431Family f.21.1.2: Cytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) [81642] (2 proteins)
    a part (domain) of a larger mitochondrial cytochrome b subunit, separate subunit in plants and cyanobacteria
  6. 745443Protein Mitochondrial cytochrome b subunit, N-terminal domain [81641] (3 species)
    also includes extra transmembrane (linker) helix absent in plants and cyanobacteria subunits
  7. 745455Species Cow (Bos taurus) [TaxId:9913] [81638] (17 PDB entries)
  8. 745464Domain d1sqxc2: 1sqx C:2-260 [119040]
    Other proteins in same PDB: d1sqxa1, d1sqxa2, d1sqxb1, d1sqxb2, d1sqxc1, d1sqxd1, d1sqxd2, d1sqxf1, d1sqxg1, d1sqxh1, d1sqxi1, d1sqxj1
    automatically matched to d1be3c3
    complexed with fes, hem, sma, uq2

Details for d1sqxc2

PDB Entry: 1sqx (more details), 2.6 Å

PDB Description: crystal structure analysis of bovine bc1 with stigmatellin a
PDB Compounds: (C:) cytochrome b

SCOP Domain Sequences for d1sqxc2:

Sequence; same for both SEQRES and ATOM records: (download)

>d1sqxc2 f.21.1.2 (C:2-260) Mitochondrial cytochrome b subunit, N-terminal domain {Cow (Bos taurus) [TaxId: 9913]}

SCOP Domain Coordinates for d1sqxc2:

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Timeline for d1sqxc2: