Fold: EndoU-like

comprises several helices and two three-stranded antiparallel beta-sheets; similar architecture to the RNase A-like fold (scop_cf 54075)

Lineage:

1. Root: scop
2. Class: Alpha and beta proteins (a+b) [53931]
   Mainly antiparallel beta sheets (segregated alpha and beta regions)
3. Fold: EndoU-like [142876]
   comprises several helices and two three-stranded antiparallel beta-sheets; similar architecture to the RNase A-like fold (scop_cf 54075)

Superfamilies:

1. EndoU-like [142877] (2)
   similarity to the RNase A-like superfamily (scop_sf 54076) extends to the active site location and architecture; the two structural cores of the RNase A and EndoU superfamilies are interrelated by a topological permutation - transposition of two pereferial beta-strands, suggesting possible distant homology of the two superfamilies (and their unification in a hyperfamily)
   uperfamily
   1. Eukaryotic EndoU ribonuclease [142878] (1)
      PfamB 010233; common fold decorated with additional structures
      1. EndoU [142879]
         1. African clawed frog (Xenopus laevis) [TaxId: 8355] [142880] (3)
            SQ Q8JFY9 6-289
   2. Nsp15 C-terminal domain-like [142881] (2)
      PfamB 001946
      1. Nsp15, C-terminal domain [142882]
         1. SARS coronavirus [TaxId: 227859] [142883] (11)
            SQ Q6VA80 6620-6774
         2. Murine hepatitis virus, MHV [TaxId: 11138] [142884] (2)
            SQ P16342 6720-6872

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