Figure 1. Schematic diagram of transcription units and proteins for the newly identified painless transcripts.

(A.) The painless^p103 transcription unit. (B.) The painless^p78 transcript shares the first non-coding exon of painless^p103 but utilizes an alternative downstream splice acceptor. (C.) The painless^p60 transcript initiates from an alternate promoter that is downstream of the promoter for painless^p103 and painless^p78. (D.) The predicted proteins for the three isoforms differ in the length of the n-terminal domain. Ankryin repeats are depicted as red.