Labeling of KATs in cell lysates. (a)
Labeling of pCAF in HEK-293
overexpression extracts. Comp. = competitor. (b) Proteins identified
in LC–MS/MS experiments as targets of H3K14-CoA-BPyne 2 in pCAF transfected HEK-293 extracts. Control = competitor
treated lane, EV = extract derived from HEK-293 cells transfected
with empty vector. (c) Limit of detection of recombinant pCAF spiked
into HeLa cell proteome. Conditions: 2 (1 μM),
proteome (7 μg), recombinant pCAF (0, 6.25, 5, 3.75, 2.5, 1.25
pmol).