FUNCTION: Nuclease involved in single-strand and double-strand DNA break repair (PubMed:17353262, PubMed:17396150). Recruited to sites of DNA damage through interaction with poly(ADP-ribose), a polymeric post-translational modification synthesized transiently at sites of chromosomal damage to accele...
FUNCTION: Nuclease involved in single-strand and double-strand DNA break repair (PubMed:17353262, PubMed:17396150). Recruited to sites of DNA damage through interaction with poly(ADP-ribose), a polymeric post-translational modification synthesized transiently at sites of chromosomal damage to accelerate DNA strand break repair reactions (PubMed:17353262, PubMed:17396150, PubMed:21211721). Displays apurinic-apyrimidinic (AP) endonuclease and 3'-5' exonuclease activities in vitro. Also able to introduce nicks at hydroxyuracil and other types of pyrimidine base damage (PubMed:17353262, PubMed:17396150). Together with PARP3, promotes the retention of the LIG4-XRCC4 complex on chromatin and accelerate DNA ligation during non-homologous end-joining (NHEJ) (PubMed:21211721, PubMed:23689425). {ECO:0000269|PubMed:17353262, ECO:0000269|PubMed:17396150, ECO:0000269|PubMed:21211721, ECO:0000269|PubMed:23689425}.
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GO - Biological processes (BP):
cellular response to DNA damage stimulus [GO:0006974]; double-strand break repair [GO:0006302]; double-strand break repair via nonhomologous end joining [GO:0006303]; positive regulation of DNA ligation [GO:0051106]; regulation of isotype switching [GO:0045191]; single strand break repair [GO:000001...
cellular response to DNA damage stimulus [GO:0006974]; double-strand break repair [GO:0006302]; double-strand break repair via nonhomologous end joining [GO:0006303]; positive regulation of DNA ligation [GO:0051106]; regulation of isotype switching [GO:0045191]; single strand break repair [GO:0000012]
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GO - Molecular function (MF):
3'-5' exonuclease activity [GO:0008408]; DNA-(apurinic or apyrimidinic site) endonuclease activity [GO:0003906]; endodeoxyribonuclease activity [GO:0004520]; metal ion binding [GO:0046872]; nucleotide binding [GO:0000166]...
3'-5' exonuclease activity [GO:0008408]; DNA-(apurinic or apyrimidinic site) endonuclease activity [GO:0003906]; endodeoxyribonuclease activity [GO:0004520]; metal ion binding [GO:0046872]; nucleotide binding [GO:0000166]
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GO - Cellular component (CC):
cytosol [GO:0005829]; nucleoplasm [GO:0005654]; nucleus [GO:0005634]; site of double-strand break [GO:0035861]...
cytosol [GO:0005829]; nucleoplasm [GO:0005654]; nucleus [GO:0005634]; site of double-strand break [GO:0035861]
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