SCOP 1.73: Family f.4.3.3: Ligand-gated protein channel

Lineage for Family f.4.3.3: Ligand-gated protein channel

1. Root: SCOP 1.73

2. Class f: Membrane and cell surface proteins and peptides [56835] (50 folds)

3. Fold f.4: Transmembrane beta-barrels [56924] (6 superfamilies)
   not a true fold, gathers together transmembrane barrels of different (n,S)

4. Superfamily f.4.3: Porins [56935] (4 families)

5. Family f.4.3.3: Ligand-gated protein channel [56948] (4 proteins)
   monomeric (22,24) barrel; ~150 N-terminal residues form a "plug" or "cork" subdomain

Proteins:

1. Ferric enterobactin receptor FepA [56951] (1 species)

   • Species Escherichia coli [TaxId:562] [56952] (1 PDB entry)

2. Ferric hydroxamate uptake receptor FhuA [56949] (1 species)

   • Species Escherichia coli [TaxId:562] [56950] (10 PDB entries)

3. Outer membrane cobalamin transporter BtuB [90129] (1 species)
   vitamin B12 receptor

   • Species Escherichia coli [TaxId:562] [90130] (8 PDB entries)

4. Outer membrane transporter FecA [75654] (1 species)

   • Species Escherichia coli [TaxId:562] [75655] (5 PDB entries)

More info for Family f.4.3.3: Ligand-gated protein channel

Timeline for Family f.4.3.3: Ligand-gated protein channel:

• Family f.4.3.3: Ligand-gated protein channel first appeared (with stable ids) in SCOP 1.55
  
• Family f.4.3.3: Ligand-gated protein channel appears in SCOP 1.71
  
• Family f.4.3.3: Ligand-gated protein channel appears in SCOP 1.75
  
• Family f.4.3.3: Ligand-gated protein channel appears in the current release, SCOPe 2.08