FIG. 6.

Differentiation-dependent expression of HBP1. (A) MEL cells were induced to differentiate with 4 mM hexamethylene bisacetamide. At the indicated times after induction, RNA was prepared and a Northern blot was obtained. The blot was probed successively with HBP1, H1⁰, and α-globin probes. (B) Rats were partially hepatectomized, and regeneration was allowed to proceed for the indicated times; then RNA was purified and analyzed as above. The ethidium bromide-stained gels before the transfer of RNAs onto the membrane are also shown.