Structural features of residue 18 in chain A

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Electrostatic Interactions:
ARG A 18 NH1	HIS B 55 NE2	2.583	INTER-CHAIN
ARG A 18 NH1	HIS A 55 NE2	3.350	INTRA-CHAIN
ARG A 18 NH1	ARG A 58 NH1	3.030	INTRA-CHAIN
ARG A 18 NH1	ARG A 58 NH2	3.457	INTRA-CHAIN
ARG A 18 NH2	HIS B 55 NE2	2.775	INTER-CHAIN
ARG A 18 NH2	HIS A 55 NE2	2.832	INTRA-CHAIN
HIS A 55 ND1	ARG A 18 NH1	3.280	INTRA-CHAIN
HIS A 55 NE2	ARG A 18 NH1	3.350	INTRA-CHAIN
ARG A 58 NH1	ARG A 18 NH1	3.030	INTRA-CHAIN
ARG A 58 NH2	ARG A 18 NH1	3.457	INTRA-CHAIN
HIS B 55 ND1	ARG A 18 NH1	2.955	INTER-CHAIN
HIS B 55 NE2	ARG A 18 NH1	2.583	INTER-CHAIN

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Protrusion Index:
ARG A 18 N	0.34
ARG A 18 CA	0.38
ARG A 18 C	0.57
ARG A 18 O	0.60
ARG A 18 CB	0.59
ARG A 18 CG	0.74
ARG A 18 CD	0.98
ARG A 18 NE	0.89
ARG A 18 CZ	1.08
ARG A 18 NH1	1.17
ARG A 18 NH2	1.02

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Van der Waal's Interactions:
ARG A 18 NH2 137	GLN B 64 NE2 498	-1.115	INTER-CHAIN