Class c: Alpha and beta proteins (a/b) [51349] (147 folds) |
Fold c.92: Chelatase-like [53799] (3 superfamilies) duplication: tandem repeat of two domains; 3 layers (a/b/a); parallel beta-sheet of 4 strands, order 2134 |
Superfamily c.92.2: "Helical backbone" metal receptor [53807] (5 families) contains a long alpha helical insertion in the interdomain linker |
c.92.2.1: Periplasmic ferric siderophore binding protein FhuD [53808] (1 protein) |
c.92.2.2: TroA-like [53811] (6 proteins) |
c.92.2.3: Nitrogenase iron-molybdenum protein [53816] (3 proteins) contains three domains of this fold; "Helical backbone" holds domains 2 and 3 both chains are homologous; the inter-chain arrangement of domains 1 is similar to the intra-chain arrangement of domains 2 and 3 |
c.92.2.4: TM0189-like [142789] (4 proteins) Part of Pfam PF01497 that include some other superfamily members |
c.92.2.0: automated matches [191548] (1 protein) not a true family |
Timeline for Superfamily c.92.2: "Helical backbone" metal receptor: