Silver-stained SDS-PAGE gel of the proteomics pull-down in A2780 cells. Lanes: 1) marker, 2) Olaparib-TCO, cleaved with 25 mM DT, 3) protein left on beads from 2, 4) Olaparib-TCO, cleaved with 0 mM DT, 5) protein left on beads from 4, 6) DMSO, cleaved with 25 mM DT, 7) protein left on beads from 6. Sizes on right indicate bands that were isolated for mass spectrometry analysis.