1	HSV	L-histidinal	1.000
2	HSO	L-histidinol	1.000
3	DHI	D-histidine	0.909
4	HHI	(2z)-3-(1h-imidazol-5-yl)-2-iminopropanoic acid	0.909
5	HIA	L-histidine amide	0.909
6	HIS	Histidine	0.909
7	2HF	2-fluoro-L-histidine	0.833
8	B3U	2-amino-L-histidine	0.833
9	EI4	Enduracididine	0.833
10	HIC	4-methyl-histidine	0.833
11	HSK	3-hydroxy-L-histidine	0.833
12	MHS	N1-methylated histidine	0.833
13	OHI	3-(2-oxo-2h-imidazol-4-yl)-L-alanine	0.833
14	PVH	Histidine-methyl-ester	0.833
15	U8S	3-[(2s)-2-hydroxy-2,3-dihydro-1h-imidazol-4-yl]-L-alanine	0.833
16	V5N	(2s,3s)-2-azanyl-3-(1h-imidazol-5-yl)-3-oxidanyl-propanoic acid	0.833
17	MWQ	3-(1~{H}-imidazol-5-yl)propanoic acid	0.818
18	URO	(2e)-3-(1h-imidazol-4-yl)acrylic acid	0.818
19	HSM	Histamine	0.800
20	HOO	(2~{S})-2-azanyl-3-[2,5-bis(oxidanylidene)imidazol-4-yl]propanoic acid	0.769
21	OGC	Gamma-N-methyl-beta-oh-histidine	0.769
22	OYL	1-ethyl-L-histidine	0.769
23	83O	(2s)-2-azanyl-3-(4h-1,2,4-triazol-3-yl)propanoic acid	0.750
24	DYT	(2~{S})-2-chloranyl-3-(1~{H}-imidazol-5-yl)propanoic acid	0.750
25	ECD	(4r)-4-(2-carboxyethyl)imidazolidin-2-iminium	0.750
26	ELL	(2s)-2-azanyl-3-[(3s)-2-oxidanylidenepyrrolidin-3-yl]propanal	0.750
27	HIX	3-(1h-1,2,3-triazol-5-yl)-L-alanine	0.750
28	KCJ	3-(1,3-thiazol-4-yl)-L-alanine	0.750
29	O66	3-[(4~{R})-5-oxidanylidene-1,4-dihydroimidazol-4-yl]propanoic acid	0.750
30	Q75	3-(1,3-thiazol-5-yl)-L-alanine	0.750