RM172 specifically reacts to Histone H3
acetylated at Lysine 27 (K27ac). No cross reactivity
with acetylated Lysine 4 (K4ac), Lysine 9 (K9ac),
Lysine 14 (K14ac), Lysine 18 (K18ac), Lysine 23
(K23ac), Lysine 36 (K36ac), Lysine 56 (K56ac),
Lysine 79 (K79ac), or Lysine 122 (K122) in Histone H3.
Western Blot of acid extracts from HeLa cells
untreated (-) or treated with sodium butyrate (+),
using RM172 at 1 ug/mL, showed a band of
histone H3 acetylated at Lysine 27 in treated
HeLa.
Immunocytochemistry of HeLa cells treated with
sodium butyrate, using Acetyl-Histone H3 (Lys27)
Rabbit mAb RM172 (red). Actin filaments have
been labeled with fluorescein phalloidin (green).