1	KPF	N-(1-carboxy-2-fluoro-ethenyl) lysine	1.000
2	KPI	(2s)-2-amino-6-[(1-hydroxy-1-oxo-propan-2-ylidene)amino]hexanoic acid	0.938
3	RF9	N~6~-[(1r)-1-carboxyethyl]-L-lysine	0.938
4	FF9	(2s)-2-azanyl-6-[(E)-(1-oxidanyl-1-oxidanylidene-butan-2-ylidene)amino]hexanoic acid	0.882
5	KYQ	(E)-N~6~-(1-carboxy-2-hydroxyethylidene)-L-lysine	0.882
6	6DN	(2~{S})-2-azanyl-6-(2-hydroxy-2-oxoethylamino)hexanoic acid	0.875
7	LLY	Nz-(dicarboxymethyl)lysine	0.833
8	ILY	N~6~-propan-2-yl-L-lysine	0.812
9	X5H	(~{E})-6-(2-hydroxy-2-oxoethylamino)hex-4-enoic acid	0.812
10	74P	(E)-N~6~-(1-carboxy-3-oxobutylidene)-L-lysine	0.789
11	KKA	(2s)-2-azanyl-6-oxidanylidene-6-[[(2s)-1-oxidanyl-1-oxidanylidene-4-sulfanyl-butan-2-yl]amino]hexanoic acid	0.789
12	LDH	N~6~-ethyl-L-lysine	0.750
13	SHR	N-(5-amino-5-carboxypentyl)glutamic acid	0.750
14	5T3	N~6~-ethyl-N~6~-propan-2-yl-L-lysine	0.722
15	D8R	(2~{S})-2-azanyl-6-[[(2~{R})-2-oxidanylpropanoyl]amino]hexanoic acid	0.722
16	N65	(2~{S})-2-azanyl-6-[(~{E})-pentan-2-ylideneamino]hexanal	0.722
17	ALY	N(6)-acetyllysine	0.706
18	IEL	N~6~-[(1z)-ethanimidoyl]-L-lysine	0.706
19	TLY	(2s)-2-azanyl-6-(ethanethioylamino)hexanoic acid	0.706
20	FHL	(E)-N~6~-[3-carboxy-1-(hydroxymethyl)propylidene]-L-lysine	0.700