1	UBE	3-({3-[(2s)-2-amino-2-carboxyethyl]-5-methyl-2,6-dioxo-3,6-dihydropyrimidin-1(2h)-yl}methyl)-5-phenylthiophene-2-carboxylic acid	1.000
2	UBA	(S)-1-(2-amino-2-carboxyethyl)-3(2-carboxythiophene-3-yl-methyl)-5-methylpyrimidine-2,4-dione	0.800
3	UB1	3-({3-[(2s)-2-amino-2-carboxyethyl]-5-methyl-2,6-dioxo-3,6-dihydropyrimidin-1(2h)-yl}methyl)-4,5-dibromothiophene-2-carboxylic acid	0.750
4	UBC	(S)-1-(2-amino-2-carboxyethyl)-3-(2-carboxybenzyl)pyrimidine-2,4-dione	0.742
5	UBF	3-({3-[(2s)-2-amino-2-carboxyethyl]-5-bromo-2,6-dioxo-3,6-dihydropyrimidin-1(2h)-yl}methyl)thiophene-2-carboxylic acid	0.742