Lineage for Superfamily d.17.6: Pre-PUA domain
- Root: SCOP 1.71
Class d: Alpha and beta proteins (a+b) [53931] (286 folds) 
Fold d.17: Cystatin-like [54402] (7 superfamilies)
Core: alpha-beta(4); helix packs against coiled antiparallel beta-sheet
Superfamily d.17.6: Pre-PUA domain [88802] (3 families) 
this domain is found in association with the PUA domain in the C-terminal region of Archaeosine tRNA-guanine transglycosylase and related stand-alone proteins
Families:
d.17.6.1: Archaeosine tRNA-guanine transglycosylase, C2 domain [88803] (1 protein) d.17.6.2: Hypothetical protein Ta1423, N-terminal domain [102820] (1 protein) 
d.17.6.3: Nip7p homolog, N-terminal domain [110832] (1 protein)
More info for Superfamily d.17.6: Pre-PUA domain
Timeline for Superfamily d.17.6: Pre-PUA domain:
- Superfamily d.17.6: Pre-PUA domain first appeared in SCOP 1.65, called Superfamily d.17.6: Archaeosine tRNA-guanine transglycosylase, C2 domain
- Superfamily d.17.6: Pre-PUA domain appears in SCOP 1.69
- Superfamily d.17.6: Pre-PUA domain appears in SCOP 1.73
- Superfamily d.17.6: Pre-PUA domain appears in the current release, SCOPe 2.08