CLASP is an alias for the gene, CLK4-associating serine/arginine rich protein, in humans. Other names include: Splicing factor, arginine/serine-rich 16; Suppressor of white-apricot homolog 2; Clk4 associating SR-related protein; SFRS16; SWAP2. The encoded protein has an amino acid length of 674 and a mass of 77.2 kDa. Other isoforms may exist. CLASP is a member of the Splicing factor SR family. This gene shares homology with other species, including: Mouse, Rat.