Structural features of residue 18 in chain A

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Electrostatic Interactions:
ARG A 18 NH1	HIS B 69 NE2	3.734	INTER-CHAIN
ARG A 18 NH1	HIS A 69 NE2	4.267	INTRA-CHAIN
ARG A 18 NH1	HIS B 127 NE2	2.897	INTER-CHAIN
ARG A 18 NH2	HIS B 69 NE2	3.548	INTER-CHAIN
ARG A 18 NH2	HIS A 69 NE2	5.982	INTRA-CHAIN
ARG A 18 NH2	HIS B 127 NE2	3.233	INTER-CHAIN
HIS A 69 ND1	ARG A 18 NH1	4.002	INTRA-CHAIN
HIS A 69 NE2	ARG A 18 NH1	4.267	INTRA-CHAIN
HIS B 69 ND1	ARG A 18 NH1	2.987	INTER-CHAIN
HIS B 69 NE2	ARG A 18 NH1	3.734	INTER-CHAIN
HIS B 127 ND1	ARG A 18 NH1	2.498	INTER-CHAIN
HIS B 127 NE2	ARG A 18 NH1	2.897	INTER-CHAIN

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Protrusion Index:
ARG A 18 N	0.41
ARG A 18 CA	0.36
ARG A 18 C	0.29
ARG A 18 O	0.16
ARG A 18 CB	0.42
ARG A 18 CG	0.46
ARG A 18 CD	0.44
ARG A 18 NE	0.39
ARG A 18 CZ	0.41
ARG A 18 NH1	0.45
ARG A 18 NH2	0.35

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Salt bridges:
GLU A 17	ARG A 18	2.234	INTRA-CHAIN

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Van der Waal's Interactions:
ARG A 18 NH2 60	MET A 20 CE 79	-0.315	INTRA-CHAIN
ARG A 18 NH2 60	HIS A 69 NE2 449	-0.040	INTRA-CHAIN
ARG A 18 NH2 60	TYR A 130 OH 978	-0.092	INTRA-CHAIN
ARG A 18 NH2 60	TYR B 130 OH 2417	-0.009	INTER-CHAIN
ARG A 18 NH2 60	LEU B 158 CD2 2599	-0.011	INTER-CHAIN
ARG A 18 NH2 60	PRO B 159 CD 2606	-0.015	INTER-CHAIN