1	CZZ	Thiarsahydroxy-cysteine	1.000
2	CZ2	S-(dihydroxyarsino)cysteine	0.900
3	CAF	S-dimethylarsinoyl-cysteine	0.818
4	CSR	S-arsonocysteine	0.818
5	BB9	(2z)-2-amino-3-sulfanylprop-2-enoic acid	0.778
6	CYS	Cysteine	0.778
7	DCY	D-cysteine	0.778
8	CAS	S-(dimethylarsenic)cysteine	0.727
9	03Y	2-methyl-L-cysteine	0.700
10	060	S-methyl-D-cysteine	0.700
11	BB6	(2z)-2-amino-3-sulfanylbut-2-enoic acid	0.700
12	CG6	Beta-methyl-cysteine	0.700
13	CSB	Cys bound to lead ion	0.700
14	CSO	S-hydroxycysteine	0.700
15	CSS	S-mercaptocysteine	0.700
16	CSX	S-oxy cysteine	0.700
17	CSZ	S-selanyl cysteine	0.700
18	SMC	S-methylcysteine	0.700