Fig. 1. 125I-IGF-I western ligand blot analysis of IGFBP-5 expression in milk from transgenic mice. Lane 1: 48 hours involution (positive control); lanes 2-7: transgenic lines, 211, 285, 289, 114 (used in this study), 137 and 292 respectively. Lane 8: from lactating wild-type mice (negative control).