
Keywords: Non-canonical amino acids; Biosynthesis; Synthetic biology; ncAA; non-canonical amino acid; β-ODAP; β-N-oxalyl-l-α,β-diaminopropionic acid; α-ODAP; l-3-amino-2-oxalylaminopropanoic acid; DJK; Djenkolic acid; HCA; Homocysteic acid; L-Trp; L-tryptophan