Calnexin mRNA is detectable during late stages of CD34+
differentiation. A, reverse transcription-PCR analysis of the
expression pattern of calnexin and AE1 mRNA in differentiating primary
erythroid progenitors. As an RNA control, the 18S rRNA gene was also amplified
by reverse transcription-PCR. B, relative RNA expression of calnexin
and AE1 to 18S rRNA during erythroid differentiation. WT, wild type;
IP, immunoprecipitation.