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. Author manuscript; available in PMC: 2010 Mar 26.

Published in final edited form as: Biochemistry. 2009 Mar 17;48(10):2087–2098. doi: 10.1021/bi8016284

Scheme 3 — (A) Kinetic Scheme for Pulse–Chase, Chemical-Quench Experiments for the RB69 pol–dP/T–dTTP Ternary Complex (FDN)^a and (B) Kinetic Scheme Indicating That Mg Is Not Able To Enter the Closed Ternary Complex

^a (FDN)^C indicates the closed state of the ternary complex. (ED*N)^O indicates a collision ternary complex in the open form. Mg indicates Mg²⁺. EP represents the product of the reaction. (FDNMg)^C indicates the ternary complex with Mg²⁺ occupying the A metal site. For part 3A, k_slow = 4 s⁻¹ and k_chem = 130 s⁻¹.