Cell-cycle independent internal control genes

I'm investigating cell cycle progression by measuring changes in the
amount of cyclin mRNA by RT-PCR. For this I need an internal control gene
which is cell-cycle independent, since this is not so for commonly-used
internal references such GAPDH or b-actin. Are there any opinions about
suitable internal standard genes which are cell cycle independent?
Martin

Last update 18-Aug-2005, Rating n/a of 1 votes.