1 9R4 D-gamma-glutamyl-2-methyl-L-alanine 1.000 2 3GC Gamma-glutamylcysteine 0.882 3 9R7 L-gamma-glutamylglycine 0.875 4 85G N-ethyl-L-glutamine 0.750 5 KSN (2~{S})-2-[[(4~{S})-4-azanyl-5-oxidanyl-5-oxidanylidene-pentanoyl]amino]pentanedioic acid 0.750 6 R0K (2~{S})-2-[[(4~{S})-4-azanyl-5-oxidanyl-5-oxidanylidene-pentanoyl]amino]hexanedioic acid 0.714 7 4JK (S)-2-amino-5-(2-hydroxyacetimidamido)pentanoic acid 0.706 8 85J N-propyl-L-glutamine 0.706 9 WT2 (S)-2-amino-5-(2-oxoacetimidamido)pentanoic acid 0.706