1	FPK	1-formyl-L-proline	1.000
2	N7P	1-acetyl-L-proline	0.909
3	N8P	N-acetyl-D-proline	0.909
4	3BY	1-methyl-L-proline	0.900
5	N80	1-ethenyl-L-proline	0.818
6	PBE	1,1-dimethyl-prolinium	0.818
7	PYB	4-amino-(1-methylpyrrole)-2-carboxylic acid	0.818
8	2PC	3,4-dihydro-2h-pyrrolium-5-carboxylate	0.800
9	8LJ	(2s)-2,3-dihydro-1h-pyrrole-2-carboxylic acid	0.800
10	DPR	D-proline	0.800
11	PRO	Proline	0.800
12	PYC	Pyrrole-2-carboxylate	0.800
13	0XW	(2s,4r)-4-hydroxy-1,1-dimethylpyrrolidinium-2-carboxylate	0.750
14	4OP	(2s,4s)-2-carboxy-4-hydroxy-1,1-dimethylpyrrolidinium	0.750
15	3WX	2-methyl-L-proline	0.727
16	4FB	(4s)-4-fluoro-L-proline	0.727
17	9TK	1-methylimidazole-2-carboxylic acid	0.727
18	DPL	4-oxoproline	0.727
19	FP9	(4r)-4-fluoro-L-proline	0.727
20	G8X	(2~{S},3~{R})-3-oxidanylpyrrolidine-2-carboxylic acid	0.727
21	HY3	3-hydroxyproline	0.727
22	HYP	4-hydroxyproline	0.727
23	HZP	(4s)-4-hydroxy-L-proline	0.727
24	JKH	4-amino-proline	0.727
25	MP8	(4r)-4-methyl-L-proline	0.727
26	PCA	Pyroglutamic acid	0.727
27	PXU	2-hydroxy-L-proline	0.727
28	UY7	(4s)-4-hydroxy-D-proline	0.727
29	UYA	(4r)-4-hydroxy-D-proline	0.727
30	MCO	1-(3-mercapto-2-methyl-propionyl)-pyrrolidine-2-carboxylic acid	0.714
31	SLC	Seleno-captopril	0.714
32	X8Z	L-captopril	0.714
33	8GZ	D-prolinol	0.700
34	FP6	Pyrrolidine-1-carbaldehyde	0.700
35	PRI	Pyrrolidine-2-carbaldehyde	0.700