Which of the following is not a function of the proliferating cell nuclear antigen (PCNA)?
A) Orients polymerase to bind to substrates
B) Has binding sites for DNA ligase
C) Ensures that replication only occurs once per cell cycle
D) Binds with enzymes for DNA repairs
E) Prevents DNA polymerase from bonding to DNA

Question

Quizplus · Accepted Answer

PCNA does not prevent DNA polymerase from bonding to DNA, rather it acts as a scaffold protein to enhance the activity of DNA polymerase. The other choices are all functions of PCNA.

Which of the Following Is Not a Function of the Proliferating