Lineage for Species: Escherichia coli [TaxId: 83333]

1. Root: SCOPe 2.05

2. Class a: All alpha proteins [46456] (286 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] (4 families) duplication: contains multiple CxxCH motifs

5. Family a.138.1.3: Di-heme elbow motif [48711] (8 proteins) the main characteristic feature of this motif is the packing of its two hemes many members contains one or more complete motifs flanked by incomplete motifs and/or other domains

6. Protein automated matches [190276] (10 species) not a true protein

7. Species Escherichia coli [TaxId:83333] [269982] (1 PDB entry)