– WL47 is a selective, high-affinity, disrupter of cavolin-1 oligomers (Kd=23 nM) than BSA, casein, and HEWL. WL47 is a caveolin-1 (CAV1) ligand and is 80% smaller in length than the original T20 parent sequence. WL47 can be used for the study of caveolin-1 function.