Rad51D: Proteins and Enzymes

The Rad51 DNA repair protein is a key component of the double-strand break repair pathway and is essential for mitotic and meiotic recombination and genomic stability. Five human RAD51 homologues have been identified: XRCC2, XRCC3, RAD51B, RAD51C, and RAD51D. Each of these homologues interacts with one or more of the others, with all of the proteins involved with either one complex or with multiple smaller complexes. RAD51D interacts with XRCC2 and RAD51C (1). RAD51D's expression pattern and sequence similarity to other RAD51 family members most likely makes it part of a complex of proteins required for DNA repair and meiotic recombination.