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Inflammation associated reactive oxygen and nitrogen species (RONs), including peroxynitrite (ONOO − ) and nitric oxide (NO), create base lesions that potentially play a role in the toxicity and large genomic rearrangements associated with many malignancies. Little is known about the role of base excision repair (BER) in removing these endogenous DNA lesions. Here, we explore the role of X-ray...
We examined a role for DNA polymerase β (Pol β) in mammalian long patch base excision repair (LP BER). Although a role for Pol β is well known in single-nucleotide BER, information on this enzyme in the context of LP BER has been limited. To examine the question of Pol β involvement in LP BER, we made use of nucleotide excision repair-deficient human XPA cells expressing UVDE (XPA-UVDE), which introduces...
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