SCOP 1.63: Superfamily c.92.2: "Helical backbone" metal receptor

Lineage for Superfamily c.92.2: "Helical backbone" metal receptor

1. Root: SCOP 1.63

2. Class c: Alpha and beta proteins (a/b) [51349] (117 folds)

3. Fold c.92: Chelatase-like [53799] (2 superfamilies)
   duplication: tandem repeat of two domains; 3 layers (a/b/a); parallel beta-sheet of 4 strands, order 2134

4. Superfamily c.92.2: "Helical backbone" metal receptor [53807] (3 families)
   contains a long alpha helical insertion in the interdomain linker

Families:

1. c.92.2.1: Periplasmic ferric siderophore binding protein FhuD [53808] (1 protein)

2. c.92.2.2: TroA-like [53811] (3 proteins)

3. c.92.2.3: Nitrogenase iron-molybdenum protein [53816] (2 proteins)
   contains three domains of this fold; "Helical backbone" holds domains 2 and 3
   both chains are homologous; the interchain arrangment of domains 1 is similar to the intrachain arrangement of domains 2 and 3

More info for Superfamily c.92.2: "Helical backbone" metal receptor

Timeline for Superfamily c.92.2: "Helical backbone" metal receptor:

• Superfamily c.92.2: "Helical backbone" metal receptor first appeared (with stable ids) in SCOP 1.55
  
• Superfamily c.92.2: "Helical backbone" metal receptor appears in SCOP 1.61
  
• Superfamily c.92.2: "Helical backbone" metal receptor appears in SCOP 1.65
  
• Superfamily c.92.2: "Helical backbone" metal receptor appears in the current release, SCOPe 2.08, called Superfamily c.92.2: 'Helical backbone' metal receptor