Figure 5.
Western blot analysis to detect ERBB3 activation in (A) Su-CCS1 cells and (B) GG-62 cells stimulated with 0.05 to 50.0 nM rhHRGβ1 over 10 minutes. K: Control (10% FCS, no rhHRGβ1); -/-: low-serum Control (0.5% FCS, no rhHRGβ1). (C) Only moderate receptor phosphorylation can be induced in the ErbB3/ErbB4 positive cell line MA-OH-1.