The palm domain of the enzyme closes around the reacting groups, creating an environment that excludes water. This energy coupling ensures that the addition of nucleotides is an irreversible, forward-moving step in the replication process.
How Correct Nucleotide Reloading Optimizes DNA Polymerase Function
DNA polymerase is not a static clamp; it undergoes conformational changes upon nucleotide binding. The Template-And-Nutrient Principle The core principle governing how DNA polymerase adds nucleotides is strict complementarity.
Understanding this mechanism reveals how life maintains its genetic code across generations. Induced Fit And Structural Rearrangement The actual chemistry involves a nucleophilic attack by the 3' hydroxyl group of the growing chain.
Correct Nucleotide Reloading DNA Polymerase: Ensuring Fidelity in Nucleotide Addition
It enters the exonuclease active site, where the mismatched bond is hydrolytically cleaved. Concurrently, a proton is released, maintaining the acid-base balance of the immediate environment.
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