Fig. 1.

Exon/intron organization of the CPD gene, alternative splicing, and transgenic CPD forms created for the present study. a The gene organization and splice forms were previously determined [20] and consists of two alternative first exons that either encode an active CP domain (1B) or inactive CP-like domain (1A), alternative splicing of the intron after exon 4, which produces either short forms containing a single CP domain or longer forms containing three CP domains, and alternative splicing of the intron after exon 8, which affects the cytosolic tail. b Constructs generated for the present study and the corresponding name of the endogenous form (if such a form exists). All transgenes are under the control of the UAS promoter (arrow). 1A, inactive CP domain 1A; 1B, active CP domain 1B; 3, inactive CP domain 3; TM, transmembrane domain; tail-1 or -2, cytosolic CPD tail