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. 2013 Dec 12;11(12):5051–5062. doi: 10.3390/md11125051

Figure 3.

Figure 3

Schematic structures of S. aureus autoinducing peptides (AIPs) I–III, solonamide B and ngercheumicin G, with amino acid sequences and type of ring closure. AIP structures are reproduced from [21]. AIP-IV also exists, where the aspartic acid (D) of AIP-I is replaced by a tyrosine residue.