Fold: Chelatase-like

duplication: tandem repeat of two domains; 3 layers (a/b/a); parallel beta-sheet of 4 strands, order 2134

Lineage:

1. Root: scop
2. Class: Alpha and beta proteins (a/b) [51349]
   Mainly parallel beta sheets (beta-alpha-beta units)
3. Fold: Chelatase-like [53799]
   duplication: tandem repeat of two domains; 3 layers (a/b/a); parallel beta-sheet of 4 strands, order 2134

Superfamilies:

1. Chelatase [53800] (3)
   interdomain linker is short; swapping of C-terminal helices between the two domains
   uperfamily
   1. Ferrochelatase [53801] (3)
   2. Cobalt chelatase CbiK [53804] (1)
   3. CbiX-like [110742] (1)
      Pfam 01903; single-domain protein; forms the C-terminal helix-swapped dimer similar to the CbiK subunit
2. "Helical backbone" metal receptor [53807] (4)
   contains a long alpha helical insertion in the interdomain linker
   uperfamily
   1. Periplasmic ferric siderophore binding protein FhuD [53808] (1)
   2. TroA-like [53811] (5)
   3. Nitrogenase iron-molybdenum protein [53816] (6)
      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
   4. TM0189-like [142789] (3)
      Part of Pfam 01497 that include some other superfamily members
3. PrpR receptor domain-like [159800] (1)
   recent PDB entry 2q5c belongs to this superfamily
   1. PrpR receptor domain-like [159801] (1)
      N-terminal domain corresponds to Pfam 06506; C-terminal domain, assigned to Pfam 00158, is distinct from other structures of this Pfam family

Generated from scop database 1.75 with scopm 1.101 on Wed Jun 3 10:42:06 2009 Copyright © 1994-2009 The scop authors / scop@mrc-lmb.cam.ac.uk