1 EME N-methyl-L-glutamic acid 1.000 2 YBR N-methyl-D-glutamic acid 1.000 3 NIG N-(iminomethyl)-L-glutamic acid 0.917 4 A1AMC (2s)-2-(methylamino)pentane-1,1,5-triol 0.909 5 NGQ N-carbamimidoyl-L-glutamic acid 0.846 6 NLG N-acetyl-L-glutamate 0.846 7 F7S (4s)-5-hydroxy-N-methyl-L-leucine 0.833 8 GNC N~2~-methyl-L-glutamine 0.833 9 HJV N~2~-methyl-D-glutamine 0.833 10 WLU (4r)-5-hydroxy-N-methyl-L-leucine 0.833 11 A1L7N N-methyl-L-norvaline 0.818 12 G9A (2e)-pent-2-enedioic acid 0.818 13 GUA Glutaric acid 0.818 14 2HG (2r)-2-hydroxypentanedioic acid 0.750 15 2IT (2z)-2-iminopentanedioic acid 0.750 16 3HG 3-hydroxypentanedioic acid 0.750 17 6JN 3-oxopentanedioic acid 0.750 18 8EW 3-methylpent-2-enedioic acid 0.750 19 9KK N-methyl norleucine 0.750 20 9ON (2~{S})-2-methylpentanedioic acid 0.750 21 AKG 2-oxoglutaric acid 0.750 22 B3D 3-aminopentanedioic acid 0.750 23 DGL D-glutamic acid 0.750 24 DNM N-methyl-D-norleucine 0.750 25 E5N (2~{R})-2-methylpentanedioic acid 0.750 26 FGA Gamma-D-glutamic acid 0.750 27 GGL Gamma-L-glutamic acid 0.750 28 GLJ 5,5-dihydroxy-L-norvaline 0.750 29 GLK (4s)-4-amino-5,5-dihydroxypentanoic acid 0.750 30 GLU Glutamic acid 0.750 31 IML N-methyl-isoleucine 0.750 32 MLE N-methylleucine 0.750 33 MLU N-methyl-D-leucine 0.750 34 S2G (2s)-2-hydroxypentanedioic acid 0.750 35 WZJ N-methyl-L-alloisoleucine 0.750 36 MDH N-methyldehydrobutyrine 0.727 37 SHO 5-hydroxylaevulinic acid 0.727 38 NLQ N~2~-acetyl-L-glutamine 0.714