Table I.
Component | Bacterial (fold) | Eukaryote (fold) | Conserved in LUCA |
---|---|---|---|
Sliding clamp | beta (6 domain ring) | PCNA (6 domain ring) | yes |
Clamp loader | tau complex (AAA+) | RFC (AAA+) | yes |
Helicase | DnaB (RecA) | CMG (AAA+) | no |
Primase | DnaG (Toprim) | Pol alpha/primase (DnaX) | no |
DNA Polymerase | Pol III (C-family) | Pols epsilon/delta (B-family) | no |