1	8WQ	(2~{S},3~{R},4~{R})-3-(carboxycarbonyl)-4-oxidanyl-pyrrolidine-2-carboxylic acid	1.000
2	05N	(3r,4r)-4-hydroxy-3-methyl-L-proline	0.714
3	KAI	3-(carboxymethyl)-4-isopropenylproline	0.706