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tid Target Cancers General Effect on Target
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POLD1, which encodes the catalytic subunit of DNA polymerase delta, plays a crucial role in DNA replication and repair.
Proofreading Function:
POLD1 possesses a 3’→5’ exonuclease (proofreading) activity, which allows it to correct misincorporated nucleotides during DNA replication.
-Several studies have observed that some tumor types, such as colorectal, breast, and lung cancers, can exhibit elevated levels of POLD1 expression compared to normal tissues.
-Overexpression may be associated with rapid cell proliferation and the increased need for DNA replication and repair in tumor cells.




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