It is induced via the IMD pathway. Position T11 is o-glycosylated and important for full activity. Subsequent analysis showed that S7 may also be glycosylated. Turn elements occur near residues 4-7, 10-13, 17, and 18. At modorate concentrations, this peptide, as well as pyrrhocoricin (AP170), is also active against a few Gram-positive bacteria such as B. megaterium (44% homology to E. coli DnaK D-E helix) and M. luteus (Hoffmann R et al. 1999 Biochim Biophys Acta 1426:459-67). Mechanism of Action (MOA): It binds to an internal protein target DnaK (Eur J Biochem 2002; 269: 4226-4237). Note that all D-drosocin is inactive (so a non-membrane target) and the L form kills bacteria in hours not in minutes. Updated 12/2012 GW. Drosocin has Antibacterial activity. The source of Drosocin is Fruit fly, Drosophila melanogaster.