Lineage for Superfamily c.128.1: DNA polymerase III chi subunit

1. Root: SCOPe 2.05

2. Class c: Alpha and beta proteins (a/b) [51349] (148 folds)

3. Fold c.128: DNA polymerase III chi subunit [102399] (1 superfamily) 3 layers, a/b/a; parallel beta-sheet of 7 strands, order 7165243

4. Superfamily c.128.1: DNA polymerase III chi subunit [102400] (1 family) structural similarity and possible evolutionary relationship to the AAA domain; lacks the P-loop motif automatically mapped to Pfam PF04364