1 FON N-{[4-({[(6r)-2-amino-5-formyl-4-oxo-1,4,5,6,7,8-hexahydropteridin-6-yl]methyl}amino)phenyl]carbonyl}-L-glutamic acid 1.000 2 FFO N-[4-({[(6s)-2-amino-5-formyl-4-oxo-3,4,5,6,7,8-hexahydropteridin-6-yl]methyl}amino)benzoyl]-L-glutamic acid 1.000 3 THF 5-hydroxymethylene-6-hydrofolic acid 1.000 4 C2F 5-methyl-5,6,7,8-tetrahydrofolic acid 0.971 5 THH N-[4-({[(6s)-2-amino-4-hydroxy-5-methyl-5,6,7,8-tetrahydropteridin-6-yl]methyl}amino)benzoyl]-L-glutamic acid 0.971 6 1YJ N-[4-({[(6r)-2-amino-4-oxo-3,4,5,6,7,8-hexahydropteridin-6-yl]methyl}amino)benzoyl]-L-glutamic acid 0.941 7 DHF Dihydrofolic acid 0.941 8 FOL Folic acid 0.941 9 THG (6s)-5,6,7,8-tetrahydrofolate 0.941 10 G7D N-(4-{[(2-amino-4-oxo-3,4-dihydropteridin-6-yl)methyl]amino}-2-hydroxybenzene-1-carbonyl)-L-glutamic acid 0.914 11 R6F Methopterin 0.914 12 TGQ (2~{S})-2-[[4-[[(6~{R})-2-azanyl-4-oxidanylidene-5,6,7,8-tetrahydro-1~{H}-pteridin-6-yl]methyl-methyl-amino]phenyl]carbonylamino]pentanedioic acid 0.914 13 10F N-({4-[{[(2r,4s,4ar,6s,8as)-2-amino-4-hydroxydecahydropteridin-6-yl]methyl}(formyl)amino]phenyl}carbonyl)-D-glutamic acid 0.889 14 1YA N-{4-[{[(6s)-2-amino-4-oxo-3,4,5,6,7,8-hexahydropteridin-6-yl]methyl}(formyl)amino]benzoyl}-L-glutamic acid 0.889 15 04J Aminopterin 0.886 16 DZF 5-deazafolic acid 0.886 17 6UV (2~{R})-2-[[4-[[2,4-bis(azanyl)pteridin-6-yl]methyl-methyl-amino]phenyl]carbonylamino]pentanedioic acid 0.861 18 MT1 N-(4-{[(2,4-diaminopteridin-1-ium-6-yl)methyl](methyl)amino}benzoyl)-L-glutamic acid 0.861 19 MTX Methotrexate 0.861 20 N5G N-({trans-4-[({(2r,4r,4as,6s,8as)-2-amino-4-hydroxy-5-[(phosphonooxy)methyl]decahydropteridin-6-yl}methyl)amino]cyclohexyl}carbonyl)-L-glutamic acid 0.846 21 G3V N-(4-{[(2,4-diaminopteridin-6-yl)methyl](hydroxymethyl)amino}benzene-1-carbonyl)-L-glutamic acid 0.838 22 VLA N-(4-{[(2,4-diamino-7,8-dihydropyrido[3,2-D]pyrimidin-6-yl)methyl]amino}benzene-1-carbonyl)-L-glutamic acid 0.833 23 VMV N-[4-({[(6s)-2,4-diamino-5,6,7,8-tetrahydropyrido[3,2-D]pyrimidin-6-yl]methyl}amino)benzene-1-carbonyl]-L-glutamic acid 0.833 24 TLL N-[4-({[(6s)-2-amino-5-methyl-4-oxo-1,4,5,6,7,8-hexahydropteridin-6-yl]methyl}amino)benzoyl]-L-gamma-glutamyl-L-glutamic acid 0.727 25 28Z N-(4-{[(2-amino-4-oxo-3,4-dihydropteridin-6-yl)methyl]amino}benzoyl)-L-gamma-glutamyl-L-glutamic acid 0.705