Organism	Genes	References
Escherichia coli	sdaA	[193, 194, 227, 144, 145, 209, 310, 315]
Escherichia coli	sdaB	[193, 173, 144, 310, 184]
Escherichia coli	tdcG	[144, 193]
Escherichia coli	tnaA	[310]