BRD4 and hypertensive disorder: By immunoprecipitation (IP) and probing for O-GlcNAc usingthe RL2 antibody in Western blot (IP-WB), we observed that the O-GlcNAcylationlevel of HTN-BRD4 was proportional to the amount of fOGT expressedand commenced only when fOGT expression reached a threshold value(Figure S1).