Figure 1. In Vitro Acetylation of K7 Repeats by p300.
(A) Scheme of the GST-CTD wild-type construct and a series of GST-CTD deletion mutants (upper panel) and the in vitro acetylation of these constructs with the purified acetyltransferase domain of p300 and [14C] acetyl-CoA (lower panel). Asterisk marks autoacetylation of p300.
(B) In vitro acetylation of the murine GST-CTD with p300 or PCAF. Reactions were analyzed by autoradiography. p300, but not PCAF, acetylates the GST-CTD construct in a dose-dependent manner. Asterisk marks the autoacetylation band of p300.
See also Figure S1.