“…Several CLRN1 splice isoforms have been described with the main one being formed by three exons, named 0, 2, and 3, encoding a 232 amino acid protein. [6][7][8] CLRN1 belongs to a large family of transmembrane proteins including both the tetraspanin and the claudin families. Members of this family have several roles including regulating cell morphology, motility, invasion, fusion, and signaling.…”