Fig. 5.
Notch2IC induces endogenous
CD23a in B cells. The CD23−pre–B-cell line REH was transiently transfected with pSG5-rN2IC, coding for the intracellular domain of rat Notch2. After 48 hours of incubation, total RNA was subjected to RT-PCR analysis that demonstrated that rNotch2IC induces CD23a transcription (lane 3). Lane 2 shows a control transfection experiment with pCMV-GFP. B-CLL cells (lane 4) served as positive control for CD23aexpression.