LL 37 (human) biotinylated is the N-terminally biotinylated version of the host defence peptide LL 37. The biotin group is attached via a 6-carbon spacer, 6-aminohexanoic acid (Ahx). The presence of the biotin tag allows numerous biochemical and microbiological applications. We also offer unlabelled LL 37 (AM-001) and the carboxyfluoresceinated version of LL 37 (AM-004).