FIG. 2.

Diagram of p12^I (top), p30^II (middle), and p13^II (bottom) with predicted functional motifs in shaded boxes. Abbreviations: TM, transmembrane region; LZip, leucine zipper motif; DxxxLL, dileucine motif; PxxP, SH3 binding motif; K/R, lysine-to-arginine variant at position 88 (arginine at this position increases stability of protein). Boxes below p30^II (middle) indicate regions sharing sequence homology with the DNA binding domain and homeodomain of Oct-1. Numbers below bars are amino acid position numbers.