Developmental distribution of the polyadenylation protein CstF-64 and the variant tauCstF-64 in mouse and rat testis.

Messenger RNA polyadenylation is one of the processes that control gene expression in all eukaryotic cells and tissues. In mice, two forms of the regulatory polyadenylation protein CstF-64 are found. The gene Cstf2 on the X chromosome encodes this form, and it is expressed in all somatic tissues.