1	ORQ	N~5~-acetyl-L-ornithine	1.000
2	AHO	N-acetyl-N-hydroxy-L-ornithine	0.923
3	85G	N-ethyl-L-glutamine	0.846
4	CIR	Citrulline	0.846
5	FH7	N^5^-formyl-N^5^-hydroxy-D-ornithine	0.846
6	FHO	N^5^-formyl-N^5^-hydroxy-L-ornithine	0.846
7	ILO	N5-iminoethyl-L-ornithine	0.846
8	4JK	(S)-2-amino-5-(2-hydroxyacetimidamido)pentanoic acid	0.786
9	85J	N-propyl-L-glutamine	0.786
10	AYC	Alaremycin 2	0.786
11	FIO	N~5~-[(1e)-2-fluoroethanimidoyl]-L-ornithine	0.786
12	LN5	N5-(1-iminopropyl)-L-ornithine	0.786
13	VUR	(S)-2-amino-5-(2-mercaptoacetimidamido)pentanoic acid	0.786
14	WT2	(S)-2-amino-5-(2-oxoacetimidamido)pentanoic acid	0.786
15	MEQ	N5-methylglutamine	0.769
16	PAO	N-(phosphonoacetyl)-L-ornithine	0.750
17	X5A	N-(4-aminobutyl)acetamide	0.750
18	9R7	L-gamma-glutamylglycine	0.733
19	JM2	N~5~-[2-(methylsulfanyl)ethanimidoyl]-L-ornithine	0.733
20	VIO	N5-(1-imino-3-butenyl)-L-ornithine	0.733
21	4VI	(2z,4e)-5-carbamimidamido-2-iminopent-4-enoic acid	0.714
22	AR7	Amino{[(4s)-4-amino-5,5-dihydroxypentyl]amino}methaniminium	0.714
23	ARG	Arginine	0.714
24	DAR	D-arginine	0.714
25	GND	2-amino-5-guanidino-pentanoic acid	0.714
26	IAR	(2e)-5-[(diaminomethylidene)amino]-2-iminopentanoic acid	0.714
27	OUE	(4~{S})-4-azanyl-5-(carboxyamino)pentanoic acid	0.714
28	QMM	N,N-dimethyl-L-glutamine	0.714
29	SCI	L-thiocitrulline	0.714
30	2YH	N~5~-D-ornithyl-L-ornithine	0.706