Fig 1.

(A) Schematic representation of the main known and putative neuropilin-1 splice variants. The exons of the neuropilin-1 isoforms are depicted by grey boxes while the black boxes correspond to intronic sequences retained into some splice variants. Deletions are represented by a black line. The boxes are not scaled to the size of the exon. The position of the primers used to co-amplify the NRP1 variants are indicated with black arrows. (B) Schematic representation of the protein domains of NRP1-FS and NRP1-Δ7. The deleted 7 amino acids sequence in NRP1-Δ7 in the vicinity of Ser₆₁₂ is shown between brackets.