Antibiotic. Inhibitor of aminopeptidase M, N and leucine and alanyl aminopeptidase and peptide deformylase (PDF). Inhibits MMP-1 (Ki=300nM), MMP-2 (IC50~90nM at MMP-2=5nM), MMP-3 (Ki=1700nM), MMP-7 (IC50~3500nM at MMP-7=19nM), MMP-8 (Ki=160nM), MMP-9 (