Figure 1.

Comparison of the protein pattern between E15.5 fetuses and newborn rats using 1D SDS-PAGE. Twenty micrograms serum proteins from each individual E15.5 fetus or newborn rat were separated on a 1D SDS gel. The gel was stained with Coomassie Brilliant Blue. Lanes 2–4 indicate different individual newborn rats and lanes 5–7 indicate different individual fetuses.