| Class d: Alpha and beta proteins (a+b) [53931] (260 folds) |
| Fold d.181: Insert subdomain of RNA polymerase alpha subunit [56552] (1 superfamily) unusual fold; contains a left-handed beta-alpha-beta unit |
Superfamily d.181.1: Insert subdomain of RNA polymerase alpha subunit [56553] (1 family) ![]() |
| d.181.1.1: Insert subdomain of RNA polymerase alpha subunit [56554] (2 proteins) |
Timeline for Superfamily d.181.1: Insert subdomain of RNA polymerase alpha subunit: