Anti-Rad50 抗体

ターゲットの情報

Component of the MRN complex, which plays a central role in double-strand break (DSB) repair, DNA recombination, maintenance of telomere integrity and meiosis (PubMed : 15064416, PubMed : 21757780, PubMed : 27889449, PubMed : 28134932, PubMed : 28867292, PubMed : 9590181, PubMed : 9651580, PubMed : 9705271). The MRN complex is involved in the repair of DNA double-strand breaks (DSBs) via homologous recombination (HR), an error-free mechanism which primarily occurs during S and G2 phases (PubMed : 15064416, PubMed : 21757780, PubMed : 27889449, PubMed : 28867292, PubMed : 9590181, PubMed : 9651580, PubMed : 9705271). The complex (1) mediates the end resection of damaged DNA, which generates proper single-stranded DNA, a key initial steps in HR, and is (2) required for the recruitment of other repair factors and efficient activation of ATM and ATR upon DNA damage (PubMed : 15064416, PubMed : 27889449, PubMed : 28867292, PubMed : 9590181, PubMed : 9651580, PubMed : 9705271). The MRN complex possesses single-strand endonuclease activity and double-strand-specific 3'-5' exonuclease activity, which are provided by MRE11, to initiate end resection, which is required for single-strand invasion and recombination (PubMed : 11741547, PubMed : 9590181, PubMed : 9651580, PubMed : 9705271). Within the complex, RAD50 is both required to bind DNA ends and hold them in close proximity and regulate the activity of MRE11 (PubMed : 11741547, PubMed : 12805565, PubMed : 28134932). RAD50 provides an ATP-dependent control of MRE11 by positioning DNA ends into the MRE11 active site : ATP-binding induces a large structural change from an open form with accessible MRE11 nuclease sites into a closed form (By similarity). The MRN complex is also required for DNA damage signaling via activation of the ATM and ATR kinases : the nuclease activity of MRE11 is not required to activate ATM and ATR (PubMed : 15064416, PubMed : 15790808, PubMed : 16622404). The MRN complex is also required for the processing of R-loops (PubMed : 31537797). In telomeres the MRN complex may modulate t-loop formation (PubMed : 10888888).