Figure 4.

Alternative splicing of the messages encoded by the Hox 1.6 gene. RNase protection experiments were performed as described in the text to examine alternative splicing of the transfected and endogenous Hox 1.6 gene transcripts. 15 μg of the RNA described in Figure 2 were used per reaction. Bands corresponding to the homeobox containing transfected message (993 T), the homeobox-less transfected message (399 T), the homeobox-containing endogenous message (993 E), and the homeobox-less endogenous message (399 E) are indicated. This experiment was performed two times with identical results.