Properties
of
E.Coli
DNA
Polymerases
| Properties | Pol I | Pol II | Pol III |
| Molecular Weight (Daltons) | 109,000 | 120,000 | 180,000 |
| Molecules/Cell | 400 | 100 | 10 |
| Nucleotides Polymerized at 37° C .Minute/Molecule | 1,000 | 50 | 15,000 |
| 5'-3' polymerization | |||
| 5'-3' Exonuclease Activity | |||
| 3'-5' Exonuclease Activity | |||
| Affinity for Triphosphate precursors | |||
| Inhibition by sulphahydryl blocking agents |