Table 2.

DSC Data Obtained for HisJ and Various Ligands at pH 7.0

Ligands	Melting temperature	ΔH/ΔH vH
Apo‐HisJ	55.9 ± 0.04a	0.88
l‐histidine	61.7 ± 0.01	1.20
N‐acetyl‐l‐histidine	57.0 ± 0.04	1.03
1‐methyl‐l‐histidine	56.6 ± 0.02	1.04
3‐methyl‐l‐histidine	58.5 ± 0.04	1.06
β‐(1, 2, 4‐triazol‐3‐yl) dl‐alanine	56.7 ± 0.02	1.11
Histamine	56.4 ± 0.20	0.67
l‐arginine	60.0 ± 0.05	1.21
Homo‐l‐arginine	60.0 ± 0.07	1.20
N G ‐methyl‐l‐arginine	59.9 ± 0.05	1.31
N G, N G′‐ dimethyl‐l‐arginine	57.2 ± 0.02	1.11
l‐lysine	57.1 ± 0.02	1.07
l‐ornithine	56.1 ± 0.02	1.05

^aThe error in the curve fitting is indicated.