Structural features of residue 18 in chain A

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Electrostatic Interactions:
ARG A 18 NH1	HIS A 19 NE2	2.362	INTRA-CHAIN
ARG A 18 NH1	HIS B 75 NE2	2.480	INTER-CHAIN
ARG A 18 NH1	HIS A 152 NE2	3.147	INTRA-CHAIN
ARG A 18 NH2	HIS A 19 NE2	2.165	INTRA-CHAIN
ARG A 18 NH2	HIS B 75 NE2	2.158	INTER-CHAIN
ARG A 18 NH2	HIS A 152 NE2	3.082	INTRA-CHAIN
HIS A 19 ND1	ARG A 18 NH1	2.782	INTRA-CHAIN
HIS A 19 NE2	ARG A 18 NH1	2.362	INTRA-CHAIN
HIS A 152 ND1	ARG A 18 NH1	3.041	INTRA-CHAIN
HIS A 152 NE2	ARG A 18 NH1	3.147	INTRA-CHAIN
HIS B 75 ND1	ARG A 18 NH1	2.429	INTER-CHAIN
HIS B 75 NE2	ARG A 18 NH1	2.480	INTER-CHAIN

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Protrusion Index:
ARG A 18 N	0.45
ARG A 18 CA	0.34
ARG A 18 C	0.26
ARG A 18 O	0.16
ARG A 18 CB	0.21
ARG A 18 CG	0.43
ARG A 18 CD	0.42
ARG A 18 NE	0.60
ARG A 18 CZ	0.75
ARG A 18 NH1	0.72
ARG A 18 NH2	1.24

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Salt bridges:
GLU A 14	ARG A 18	3.075	INTRA-CHAIN
GLU A 14	ARG A 18	2.941	INTRA-CHAIN
ARG A 18	HIS A 19	2.720	INTRA-CHAIN

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Van der Waal's Interactions:
GLU A 14 OE2 53	ARG A 18 NH2 94	-0.804	INTRA-CHAIN
ARG A 18 NH2 94	ALA B 114 CB 854	-0.009	INTER-CHAIN
ARG A 18 NH2 94	GLY B 143 O 1073	-0.257	INTER-CHAIN
ARG A 18 NH2 94	ASP B 145 OD2 1086	-0.259	INTER-CHAIN