Expression of IGF1R in mouse livers with H19 knockout on different parental alleles.

(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 (H19+/+) individuals and lanes 4–6 indicate H19M-/P+ individuals. Values are represented as mean ± S.D.