Fig. 7.
Half-life of cyclin A1 mRNA in PR9 cells with and without induction of PML-RARα.
The Northern blot was performed as described in “Materials and methods.” For uninduced and induced cells, 20 and 10 μg RNA was loaded, respectively. The calculated half-lives were 3.6 and 4.5 hours for uninduced (−Zn2+) and induced (+Zn2+) cells, respectively.