Fig. 5.
FANCC mRNA expression is constant during cell cycle progression.
(A) 293 NEO cells were synchronized with HU and released from the G1/S boundary as described above. Total cytoplasmic RNA was prepared from synchronized cells or from a culture of asynchronous 293 NEO cells (Asynch.). Endogenous FANCC and β-actin mRNA were analyzed by ribonuclease protection assay. A representative experiment is shown. (B) Identical experiments were performed using 293 FANCC E2 cells. Total FANCC (endogenous plus exogenous) and β-actin mRNA were analyzed by ribonuclease protection assay. A representative experiment is shown. Exposure times were identical for membranes depicted in A and B to demonstrate that 293 FANCC cells express more FANCC mRNA than 293 NEO cells.