A) For iPOND analysis (Sirbu et al., 2012), cell lysates and iPOND-purified fractions were prepared from untreated cell cultures and from parallel cultures pulsed-labeled for 10 minutes with IdU. The IdU-labeled cultures were harvested immediately or after a subsequent 90-chase with 2mM hydroxyurea (HU) and/or 100 nM olaparib (PARPi).
B) Immunoblot analysis of protein abundance in the input cell lysates (left) and the corresponding iPOND-purified fractions (right) from Bard1+/+ and Bard1SF/SF cells.
C) Immunoblot analysis of protein abundance in the input cell lysates (left) and the corresponding iPOND-purified fractions (right) from Bard1+/+ and Bard1KA/KA cells.