Fold: DNA/RNA-binding 3-helical bundle

core: 3-helices; bundle, closed or partly opened, right-handed twist; up-and down

Lineage:

1. Root: scop
2. Class: All alpha proteins [46456]
3. Fold: DNA/RNA-binding 3-helical bundle [46688]
   core: 3-helices; bundle, closed or partly opened, right-handed twist; up-and down

Superfamilies:

1. Homeodomain-like [46689] (17)
   consists only of helices
2. Methylated DNA-protein cysteine methyltransferase, C-terminal domain [46767] (1)
3. ARID-like [46774] (1)
   contains extra helices at both N- and C-termini
4. "Winged helix" DNA-binding domain [46785] (68)
   contains a small beta-sheet (wing)
5. C-terminal effector domain of the bipartite response regulators [46894] (3)
   binds to DNA and RNA polymerase; the N-terminal, receiver domain belongs to the CheY family
6. TrpR-like [48295] (2)
   contains an extra shared helix after the HTH motif
7. Ribosomal protein L11, C-terminal domain [46906] (1)
8. Ribosomal protein S18 [46911] (1)
9. Polynucleotide phosphorylase/guanosine pentaphosphate synthase (PNPase/GPSI), domain 3 [46915] (1)
10. N-terminal Zn binding domain of HIV integrase [46919] (1)
11. RNA polymerase subunit RPB10 [46924] (1)
12. Sigma3 and sigma4 domains of RNA polymerase sigma factors [88659] (3)
13. KorB DNA-binding domain-like [109709] (1)
    contains HTH motif in the common core; also contains extra N-terminal helix and C-terminal subdomain of 4 helices (left-handed superhelix)
14. Rps17e-like [116820] (1)

Generated from scop database 1.73 with scopm 1.101 on Wed Nov 21 11:18:32 2007 Copyright © 1994-2007 The scop authors / scop@mrc-lmb.cam.ac.uk