1	QMM	N,N-dimethyl-L-glutamine	1.000
2	1HB	(4s)-4-amino-5-hydroxy-N,N-dimethylpentanamide	0.917
3	MEQ	N5-methylglutamine	0.917
4	85G	N-ethyl-L-glutamine	0.846
5	85J	N-propyl-L-glutamine	0.786
6	HGA	Glutamine hydroxamate	0.769
7	AA4	2-amino-5-hydroxypentanoic acid	0.750
8	5KJ	N~5~-(N-hydroxycarbamimidoyl)-N~5~-methyl-L-ornithine	0.733
9	9R7	L-gamma-glutamylglycine	0.733
10	4VI	(2z,4e)-5-carbamimidamido-2-iminopent-4-enoic acid	0.714
11	AR7	Amino{[(4s)-4-amino-5,5-dihydroxypentyl]amino}methaniminium	0.714
12	ARG	Arginine	0.714
13	CIR	Citrulline	0.714
14	DAR	D-arginine	0.714
15	FH7	N^5^-formyl-N^5^-hydroxy-D-ornithine	0.714
16	FHO	N^5^-formyl-N^5^-hydroxy-L-ornithine	0.714
17	GND	2-amino-5-guanidino-pentanoic acid	0.714
18	IAR	(2e)-5-[(diaminomethylidene)amino]-2-iminopentanoic acid	0.714
19	ILO	N5-iminoethyl-L-ornithine	0.714
20	ORQ	N~5~-acetyl-L-ornithine	0.714
21	SCI	L-thiocitrulline	0.714