Fig. 4

Chemical structure of the cryopeptins 1–14 (A-N). The cryopeptins are linear lipopeptides consisting of either a pentapeptide backbone (L-Phe-Dhv-L-Arg-Dhv-L-Leu; cryopeptins A-J) or a heptapeptide backbone (L-Phe-Dhv-L-Arg-Dhv-L-Arg-Dhv-L-Leu; cryopeptins K-N). They differ concerning their N-terminal lipid tail (R₁, R₂).