Ku70 is a heterodimeric protein made up of Ku70 and Ku80, which together form Ku. In humans, is encoded by the XRCC6 gene. Ku70 plays a critical role in the DNA repair, maintenance and many other cellular processes.
Ku70 is a heterodimeric protein made up of Ku70 and Ku80, which together form Ku. In humans, is encoded by the XRCC6 gene. Ku70 plays a critical role in the DNA repair, maintenance and many other cellular processes.
== Function == Together, Ku70 and Ku80 make up the Ku heterodimer form a quasi-symmetric structure, which encircles the double-stranded DNA. The DNA double-strand break ends and is required for the non-homologous end joining (NHEJ) of the DNA repair pathway. It is also required for V(D)J recombination, which utilizes the NHEJ pathway to promote antigen diversity in the mammalian immune system. Ku70 is key for sensing and responding to cytosolic DNA, which is essential for the indication of infection. Within the heterodimer, Ku70 specifically binds directly to broken ends of double-stranded DNA breaks, or DSBs. Then together, Ku70 and Ku80 will tightly form a ring-like structure around the DNA strand, preventing further degradation. These steps are essential for the success of non-homologous end joining.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).