Fig 1B.

Schematic diagram of IL15Rα splicing variants from mouse brain microvessel endothelial cells. In total, five splicing variants were isolated. Variant αf encodes the full length IL15Rα and contains all exons (1 = signal peptide, 2 = ligand-binding Sushi domain, 3 = linker domain, 4/5 = Thr/Pro rich domain, 6 = transmembrane domain, and 7 = cytoplasmic domain). Variant α1 does not have exons 3,4 and 5, and a codon in exon 1 encoding Leu was absent (marked by *). Variant α2 lacks exons 3, 4, 5 and half of exon 2. Variant α3 lacks half of exon 2. Variant α4 does not have exon 4, but has an additional sequence inserted between exons 5 and 6 denoted as exon 5'.