1	2QD	(4r)-4-[3-(methylamino)-3-oxopropyl]-L-glutamic acid	1.000
2	3ZA	(4r)-4-{3-[hydroxy(methyl)amino]-3-oxopropyl}-L-glutamic acid	0.941
3	2QE	(2s,4r)-4-(3-methoxy-3-oxopropyl) glutamic acid	0.778
4	P7W	Pentane-1,3,5-tricarboxylic acid	0.765
5	QW2	(4~{S})-2-oxidanylidene-4-propyl-pentanedioic acid	0.706