Fig. 4From: rBAN: retro-biosynthetic analysis of nonribosomal peptidesIdentification of monomers containing inner bonds. Some monomer bonds are sometimes fragmented by the algorithm. To handle these cases, when a small region cannot be identified, rBAN repeats the matching process after removing the bond linked to the unidentified substructure (example with Theonellapeptolide Ie)Back to article page