1	KPY	(2r)-2-azanyl-3-[2-[(E)-(1-oxidanyl-1-oxidanylidene-propan-2-ylidene)amino]ethylsulfanyl]propanoic acid	1.000
2	T7H	3-({2-[(carboxymethyl)amino]ethyl}sulfanyl)propanoic acid	0.867
3	T7C	3-({2-[(2-amino-2-oxoethyl)amino]ethyl}sulfanyl)propanoic acid	0.750