1	CSK	S-(methylselanyl)-L-cysteine	1.000
2	CSZ	S-selanyl cysteine	0.889
3	BB9	(2z)-2-amino-3-sulfanylprop-2-enoic acid	0.778
4	CYS	Cysteine	0.778
5	DCY	D-cysteine	0.778
6	03Y	2-methyl-L-cysteine	0.700
7	060	S-methyl-D-cysteine	0.700
8	BB6	(2z)-2-amino-3-sulfanylbut-2-enoic acid	0.700
9	CG6	Beta-methyl-cysteine	0.700
10	CSB	Cys bound to lead ion	0.700
11	CSO	S-hydroxycysteine	0.700
12	CSS	S-mercaptocysteine	0.700
13	CSX	S-oxy cysteine	0.700
14	SMC	S-methylcysteine	0.700