Structural Classification of Proteins and ASTRAL release 1.75 (June 2009)
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Lineage for Family a.138.1.1: Cytochrome c3-like

  1. Root: SCOP 1.75
  2. Class a: All alpha proteins [46456] (284 folds)
  3. Fold a.138: Multiheme cytochromes [48694] (1 superfamily)
    variable number of helices and little beta structure; not a true fold
  4. Superfamily a.138.1: Multiheme cytochromes [48695] (3 families) (S)
    duplication: contains multiple CxxCH motifs
  5. Family a.138.1.1: Cytochrome c3-like [48696] (4 protein domains)

Protein Domains:

  1. 16-heme cytochrome c HmcA [81940] (1 species)
    tandem repeat of four cytochrome c3-like domains
  2. Cytochrome c3 [48697] (7 species)
    contains four heme groups
    1. Species Desulfomicrobium norvegicum [TaxId:52561] [48702] (1 PDB entry)
      synonym: Desulfovibrio desulfuricans Norway
    2. Species Desulfovibrio africanus [TaxId:873] [48701] (2 PDB entries)
    3. Species Desulfovibrio baculatus (Desulfomicrobium baculatus) [TaxId:899] [117036] (1 PDB entry)
      Uniprot Q6XCI5 # fragment
    4. Species Desulfovibrio desulfuricans, different strains [TaxId:876] [48698] (8 PDB entries)
      Uniprot Q9L915
    5. Species Desulfovibrio gigas [TaxId:879] [48700] (3 PDB entries)
    6. Species Desulfovibrio gigas, di-tetraheme cytochrome c3 [TaxId:879] [74804] (1 PDB entry)
      disulfide-crosslinked dimer
    7. Species Desulfovibrio vulgaris [TaxId:881] [48699] (11 PDB entries)
      Uniprot P00132
  3. Cytochrome c7 (cytochrome c551.5, PpcA) [48703] (3 species)
    contains three heme groups; deletion of one of Cyt c3 heme-binding sites
    1. Species Desulfuromonas acetoxidans [TaxId:891] [48704] (8 PDB entries)
    2. Species Geobacter sulfurreducens, GSU1996 [TaxId:35554] [110039] (1 PDB entry)
      Uniprot Q74BP5
    3. Species Geobacter sulfurreducens, PpcA [TaxId:35554] [101502] (1 PDB entry)
  4. Nine-heme cytochrome c [48705] (2 species)
    tandem repeat of two cytochrome c3-like domains with additional heme-binding site in the domain interface
    1. Species Desulfovibrio desulfuricans, ATCC 27774 [TaxId:876] [48706] (3 PDB entries)
    2. Species Desulfovibrio desulfuricans, ATCC 29577 [TaxId:876] [63634] (1 PDB entry)

More info for Family a.138.1.1: Cytochrome c3-like

Timeline for Family a.138.1.1: Cytochrome c3-like:

Family a.138.1.1: Cytochrome c3-like appears in SCOP 1.73
Family a.138.1.1: Cytochrome c3-like appears in SCOP 1.75A

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