sVEGFR-3 is expressed in the cornea. (A) Structure of the VEGFR-3 receptor. (B) sVEGFR-3 consists of 4 extracellular domains and a unique tail derived from intron 11. (C) Representative western blot of human cornea with antibody specific to the intron-derived unique C-terminal tail of human sVEGFR-3 (PA 4835; Thermo Scientific) demonstrates sVEGFR-3 at 70 kDa. (D) Genomic, exon-intron structure of sVEGFR-3 consisting of 11 exons (black boxes) and a tail derived from intron 11. Ab, antibody.