Several commercially available primary antibodies were utilized: RAD51D (Novus), XRCC2 (Santa Cruz), BRCA1 (Millipore) and BRCA2 (Calbiochem). Anti-RAD51C, anti-XRCC3, anti-γH2AX, anti-HA, and anti-β actin antibodies were as described elsewhere.[24 (link)]
Secondary antibodies for immunofluorescence microscopy and the detection of immunoblots using chemiluminescence (Amersham) were as described previously.[23 (link)]