Expression of IGF1R in mouse livers with <i>H19</i> knockout on different parental alleles.

<p>(A) RNA expression was determined by RT-PCR in mouse livers at ages 5, 10, 15, 20, 30, and 60 days after birth (n = 4 per group). (B) Protein expression was determined by Western blot for IGF1R for mice at ages 5, 10, 15, 20, and 60 days after birth. Lanes 1–3 indicate wild type (<i>H19</i><sup>+/+</sup>) individuals and lanes 4–6 indicate <i>H19</i><sup>M-/P+</sup> individuals. Values are represented as mean ± S.D.</p>