Structural features of residue 18 in chain A

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Electrostatic Interactions:
HIS A 18 ND1	ASP A 22 OD1	-1.390	INTRA-CHAIN
HIS A 18 ND1	ARG B 72 NH1	2.177	INTER-CHAIN
HIS A 18 ND1	ASP B 93 OD1	-1.770	INTER-CHAIN
HIS A 18 NE2	ARG B 69 NH1	2.120	INTER-CHAIN
HIS A 18 NE2	ASP B 93 OD1	-1.918	INTER-CHAIN
HIS A 18 NE2	ARG B 110 NH1	2.278	INTER-CHAIN
ASP A 22 OD1	HIS A 18 ND1	-1.390	INTRA-CHAIN
ARG B 69 NH1	HIS A 18 NE2	2.120	INTER-CHAIN
ARG B 69 NH2	HIS A 18 NE2	2.374	INTER-CHAIN
ARG B 72 NH2	HIS A 18 NE2	2.215	INTER-CHAIN
ASP B 93 OD1	HIS A 18 ND1	-1.770	INTER-CHAIN
ASP B 93 OD2	HIS A 18 ND1	-1.665	INTER-CHAIN
ARG B 110 NH1	HIS A 18 NE2	2.278	INTER-CHAIN
ARG B 110 NH2	HIS A 18 NE2	2.352	INTER-CHAIN

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Protrusion Index:
HIS A 18 N	0.80
HIS A 18 CA	0.68
HIS A 18 O	0.74
HIS A 18 CB	0.97
HIS A 18 CG	1.08
HIS A 18 ND1	1.57
HIS A 18 CD2	0.88
HIS A 18 CE1	1.74
HIS A 18 NE2	1.29