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N-Butyryl-DL-homoserine lactone is a member of N-acyl-homoserine lactone family. N-acylhomoserine lactones (AHL) regulate gene  in gram-negative bacteria, such as Echerichia and Salmonella are involved in quorum sensing, cell to cell communication among bacteria.

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6-Diazo-5-oxo-L-norleucine (DON) is a glutamine analogue.

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