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	A1AS0	5-selanyl-L-histidine	0.833
9	A1ASZ	5-sulfanyl-L-histidine	0.833
10	A1AZ2	3-methyl-D-histidine	0.833
11	A1I9G	3(S)-methyl-histidine	0.833
12	B3U	2-amino-L-histidine	0.833
13	EI4	Enduracididine	0.833
14	HIC	4-methyl-histidine	0.833
15	HSK	3-hydroxy-L-histidine	0.833
16	MHS	N1-methylated histidine	0.833
17	OHI	3-(2-oxo-2h-imidazol-4-yl)-L-alanine	0.833
18	PVH	Histidine-methyl-ester	0.833
19	V5N	(2s,3s)-2-azanyl-3-(1h-imidazol-5-yl)-3-oxidanyl-propanoic acid	0.833
20	MWQ	3-(1~{H}-imidazol-5-yl)propanoic acid	0.818
21	URO	(2e)-3-(1h-imidazol-4-yl)acrylic acid	0.818
22	HSM	Histamine	0.800
23	HOO	(2~{S})-2-azanyl-3-[2,5-bis(oxidanylidene)imidazol-4-yl]propanoic acid	0.769
24	OGC	Gamma-N-methyl-beta-oh-histidine	0.769
25	OYL	1-ethyl-L-histidine	0.769
26	83O	(2s)-2-azanyl-3-(4h-1,2,4-triazol-3-yl)propanoic acid	0.750
27	DYT	(2~{S})-2-chloranyl-3-(1~{H}-imidazol-5-yl)propanoic acid	0.750
28	ECD	(4r)-4-(2-carboxyethyl)imidazolidin-2-iminium	0.750
29	ELL	(2s)-2-azanyl-3-[(3s)-2-oxidanylidenepyrrolidin-3-yl]propanal	0.750
30	HIX	3-(1h-1,2,3-triazol-5-yl)-L-alanine	0.750
31	KCJ	3-(1,3-thiazol-4-yl)-L-alanine	0.750
32	O66	3-[(4~{R})-5-oxidanylidene-1,4-dihydroimidazol-4-yl]propanoic acid	0.750
33	Q75	Thiazole-histidine	0.750
34	A1AJU	4-ethenyl-1h-imidazole	0.700