Table 2. Occupancies of the hydrogen bonds in the two 600 ns GNTIs-κOR systems and the apo-κOR system.

HB NO.	5′-GNTI system			6′-GNTI system			Apo system
	1(%)	2(%)	3(%)	1(%)	2(%)	3(%)	1(%)	2(%)
E6.58-ligand	0.4	93.9	5.7	2.7	89.5	7.3	—a	—
D3.32-ligand	71.4	2.3	—	19.1	6.6	1.1	—	—
S7.47-V1.42	24.3	—	—	2.7	—	—	6.1	—
D3.32-Y7.43	69.4	0.2	—	44.1	0.3	—	—	—

^athe symbol “–” represents that there is no hydrogen bond interaction.