SCOPe 2.03: Domain d2ibzc2: 2ibz C:1-261

Lineage for d2ibzc2 (2ibz C:1-261)

1. Root: SCOPe 2.03

2. Class f: Membrane and cell surface proteins and peptides [56835] (57 folds)

3. Fold 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. Superfamily f.21.1: Transmembrane di-heme cytochromes [81342] (2 families)
   Three of the four heme-ligands are conserved between the two families; both heme groups bind similarly but not identically

5. Family 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

6. Protein Mitochondrial cytochrome b subunit, N-terminal domain [81641] (3 species)
   also includes extra transmembrane (linker) helix absent in plants and cyanobacteria subunits

7. Species Baker's yeast (Saccharomyces cerevisiae) [TaxId:4932] [81640] (7 PDB entries)

8. Domain d2ibzc2: 2ibz C:1-261 [137220]
   Other proteins in same PDB: d2ibza1, d2ibza2, d2ibzb1, d2ibzb2, d2ibzc1, d2ibzd1, d2ibzd2, d2ibze1, d2ibze2, d2ibzf_, d2ibzg_, d2ibzh_, d2ibzi_, d2ibzx_, d2ibzy_
   automated match to d1kb9c2
   complexed with fes, hem, sma, uq6

Details for d2ibzc2

PDB Entry: 2ibz, 2.3 Å

PDB Description: yeast cytochrome bc1 complex with stigmatellin

PDB Compounds: (C:) cytochrome b

SCOPe Domain Sequences for d2ibzc2:

Sequence; same for both SEQRES and ATOM records:

>d2ibzc2 f.21.1.2 (C:1-261) Mitochondrial cytochrome b subunit, N-terminal domain {Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932]}
mafrksnvylslvnsyiidspqpssinywwnmgsllglclviqivtgifmamhyssniel
afssvehimrdvhngyilrylhangasfffmvmfmhmakglyygsyrsprvtlwnvgvii
ftltiataflgyccvygqmshwgatvitnlfsaipfvgndivswlwggfsvsnptiqrff
alhylvpfiiaamvimhlmalhihgssnplgitgnldripmhsyfifkdlvtvflfmlil
alfvfyspntlghpdnyipgn

Timeline for d2ibzc2:

• d2ibzc2 first appeared in SCOP 1.73
  
• d2ibzc2 appears in SCOPe 2.02
  
• d2ibzc2 appears in SCOPe 2.04
  
• d2ibzc2 appears in the current release, SCOPe 2.08