quick question about DNA mismatch repair

[premedkid1994]

After replication (S phase), and DNA polymerase leaves a mistake, the mismatch repair enzyme in G2 of the cell tries to fix this mistake.

Now my question is why does the mismatch repair enzyme need to find a palindromic sequence of bases GATC? How will a palindromic sequence help the enzyme repair the DNA??

edit: nvm I figured it out

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