A biotinylated derivative of the tetrapeptide inhibitor ASTD-FMK, which acts as a competitive inhibitor for the cleavage site of pro-EMAP II (Endothelial monocyte-activating polypeptide). EMAPII, which is a proinflammatory cytokine and a chemoattractant for monocytes, is specifically processed and released upon the induction of apoptosis in cultured cells.