Figure 2.

The HKα2 gene transcription start sites for HKα2a (panel A) and HKα2c (panel B). GATC represents those nucleotides for the M13 control sequence. R represents the protected fragment from the RNase protection assay performed with rabbit colon RNA. A portion of the genomic sequence 5’ of the HKα2 gene is shown below each figure. Arrows indicate the position of the transcription start sites. Bolded nucleotides represent putative core promoter elements upstream of each transcription start site.