Examples of side chain crosslinked peptides from both ribosomal (RiPPs-cittilin, biarylitides (R = H, OH), myxarylin and gristide) and nonribosomal peptide biosynthesis pathways (arylomycin and vancomycin). Bonds (and atoms in the case of gristide) installed by the P450 enzymes are shown in bold. Residue colors: red product of P450Bltblue histidine, orange 4-hydroxyphenylglycine, pink 3,5-dihydroxyphenylglycine.
