Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.
稳定性和存储
Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt.
背景
DNA repair protein Ku70 (XRCC6) is a ~69 kDa protein. DNA-binding protein critical for the DNA damage response, specifically in repairing double-strand breaks (DSBs) via the classical non-homologous end joining (NHEJ) pathway. It forms a heterodimer with XRCC5 (Ku80), creating the Ku70:Ku80 heterodimer (Ku complex), which serves as a DNA end-binding complex. It primarily binds DSBs and recruits essential repair factors, assembling the core long-range NHEJ complex to facilitate the alignment and ligation of broken DNA ends. This pathway ensures the rapid repair of cytotoxic and mutagenic DSBs and contributes to the generation of diversity in T-cell receptors and antibodies through mechanisms such as V(D)J recombination. Likely acts as a 5'-deoxyribose-5-phosphate lyase (5'-dRP lyase), catalyzing the beta-elimination of the 5'-deoxyribose-5-phosphate at abasic sites near DSBs.
1. Walker, JR. et al. (2001) Nature 412, 607-14. PMID: 11493912
2. Liu, H. et al. (2010) Biochemical and biophysical research communications 397, 245-50. PMID: 20493174
3. Chen, S. et al. (2021) Nature 593, 294-298. PMID: 33854234
