1	SCH	S-methyl-thio-cysteine	1.000
2	SCS	3-(ethyldisulfanyl)-L-alanine	0.900
3	CSS	S-mercaptocysteine	0.889
4	0QL	3-[(2-aminoethyl)disulfanyl]-L-alanine	0.818
5	C1S	3-(prop-2-en-1-yldisulfanyl)-L-alanine	0.818
6	CME	S,S-(2-hydroxyethyl)thiocysteine	0.818
7	EFC	S,S-(2-fluoroethyl)thiocysteine	0.818
8	TSY	(2s)-2-amino-3-trisulfanylpropanoic acid	0.800
9	3SS	3-disulfanylpropanoic acid	0.778
10	BB9	(2z)-2-amino-3-sulfanylprop-2-enoic acid	0.778
11	CYS	Cysteine	0.778
12	DCY	D-cysteine	0.778
13	BUC	S,S-butylthiocysteine	0.750
14	PR3	S,S-propylthiocysteine	0.727
15	03Y	2-methyl-L-cysteine	0.700
16	060	S-methyl-D-cysteine	0.700
17	BB6	(2z)-2-amino-3-sulfanylbut-2-enoic acid	0.700
18	CG6	Beta-methyl-cysteine	0.700
19	CSB	Cys bound to lead ion	0.700
20	CSO	S-hydroxycysteine	0.700
21	CSX	S-oxy cysteine	0.700
22	CSZ	S-selanyl cysteine	0.700
23	SMC	S-methylcysteine	0.700