| Antigen | Purified Bovine Sm antigen for Western blot +ve control (Cat # SMA11-C) is supplied in SDS-PAGE sample buffer (reduced). Load 10 ul/lane of SMA11-C for good visibility with rabbit antibody Cat # SMA11-S. Sm antigen is a non-histone nuclear protein composed of several polypeptides of differing molecular weights. They include B (26 kD), B'(27 k D), and D (13 kD). |