ab11170-50ug，Anti-MDC1 antibod

MDC1 also known as mediators of DNA damage checkpoint protein 1 or ABF-M 1711 is an important player in the DNA damage response (DDR). It has a mass of approximately 220 kDa. MDC1 is highly expressed in various human tissues particularly where cell turnover is high like in the bone marrow and lymphoid organs. In cellular operations MDC1 serves as a scaffold protein that coordinates recruitment and activation of DDR machinery at sites of double-strand breaks (DSBs) on DNA./ Biological function summary/ This protein plays a vital role in maintaining genomic stability by binding to phosphorylated histone H2AX at DSB sites. It is not a solitary player; MDC1 functions as part of a larger protein complex including factors like RNF8 RNF168 and 53BP1. This complex is essential for amplifying the DDR signal and facilitating the repair process through non-homologous end joining (NHEJ) and homologous recombination (HR). MDC1's interaction with other repair proteins helps to extend the signal required for effective DNA repair./ Pathways/ MDC1 significantly influences cellular pathways involving DNA damage sensing and repair and cell cycle checkpoints. It ties closely to the ATM kinase pathway which is activated in response to DSBs. MDC1 aids ATM in phosphorylating downstream targets like CHK2 and p53 for cell cycle arrest. It also connects with BRCA1 interacting in HR repair pathways to ensure accurate repair of DSBs. Both ATM and BRCA1 interactions illustrate MDC1's pivotal role in maintaining DNA integrity./