Coimmunoprecipitation of mSin3A (A) and REST (B), immunoblotted for mSin3A, REST, OGT, O-GlcNAc, HDAC1, HDAC2, HDAC4, and HDAC5. The position from which additional lanes were removed is indicated by the lined box and white spaces; immunoblots presented are representative images from a total of n = 6 per group.