1	CDT	4-methylsulfanyl-2-ureido-butyric acid	1.000
2	W9J	N-carbamoyl-L-methionine	1.000
3	FME	N-formylmethionine	0.917
4	AME	N-acetylmethionine	0.846
5	CXM	N-carboxymethionine	0.846
6	MME	N-methyl methionine	0.833
7	2MM	N,N-dimethyl-L-methionine	0.769
8	CDV	3-methyl-2-ureido-butyric acid	0.769
9	NCB	N-carbamoyl-alanine	0.750
10	4MM	N,N,N-trimethylmethionine	0.714
11	NCD	N-carbamoyl-L-aspartate	0.714