1 AOR N~2~-acetyl-L-ornithine 1.000 2 NLQ N~2~-acetyl-L-glutamine 0.923 3 AN0 N-acetyl-L-norvaline 0.917 4 LAY N-acetyl-L-leucine 0.846 5 GZJ (2s)-2-(acetylamino)butanoic acid 0.833 6 AQK (2~{S})-5-azanyl-2-(2-hydroxy-2-oxoethylamino)pentanoic acid 0.786 7 NLG N-acetyl-L-glutamate 0.786 8 UDL (2~{S},3~{R})-2-acetamido-4-methyl-3-oxidanyl-pentanoic acid 0.786 9 DNG N-formyl-D-norleucine 0.769 10 GNC N~2~-methyl-L-glutamine 0.769 11 HJV N~2~-methyl-D-glutamine 0.769 12 P4B (2~{R})-4-azanyl-2-[[(1~{S})-1-oxidanylethyl]amino]butanoic acid 0.769 13 QIL N-formyl-L-isoleucine 0.769 14 THC N-methylcarbonylthreonine 0.769 15 A1L7N N-methyl-L-norvaline 0.750 16 AYA N-acetylalanine 0.750 17 SUO N~2~-(3-carboxypropanoyl)-L-ornithine 0.750 18 X5A N-(4-aminobutyl)acetamide 0.750 19 AQQ (2~{S})-5-azanyl-2-[[(2~{R})-1-oxidanyl-1-oxidanylidene-propan-2-yl]amino]pentanoic acid 0.733 20 AME N-acetylmethionine 0.714 21 KKD N-acetyl-L-aspartic acid 0.714 22 SWJ 2-azanyl-~{N}-[(3~{S})-2-oxidanylidenehex-5-yn-3-yl]ethanamide 0.714 23 ZKO N-succinyl-glutamine 0.706