Table 4.

Toxic amino acid analogues used in this study

Name	Amino acid analogue	Tested final concn (μg/ml)
Canavanine	Arginine	1–20
Thialysine	Lysine	1–60
Ethionine	Methionine	0.5–5
p-Fluoro-l-phenylalanine	Phenylalanine	5–25
3-Hydroxynorvaline	Valine	100–500
Azaleucine	Leucine	50–500
5-Fluoro-dl-tryptophan	Tryptophan	3–10
4-Methyl-dl-tryptophan	Tyrosine	3–20