This is the N-terminal of the DNA repair protein Rad54 []. Rad54 functions in the recombinational DNA repair (RAD52) pathway. It dissociates RAD51 from nucleoprotein filaments formed on dsDNA and could be involved in the turnover of RAD51 protein-dsDNA filaments. Deficient mice also show significantly shorter telomeres than wild-type controls, indicating that the protein activity plays an essential role in telomere length maintenance in mammals. Non-homologous end joining (NHEJ) and homologous recombination (HR) represent the two major pathways of DNA double-strand break (DSB) repair in eukaryotic cells. LIG4 and RAD54L cooperate to support cellular proliferation, repair spontaneous DSBs, and prevent chromosome and single chromatid aberrations [, ].
