Structural features of residue 18 in chain B

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Electrostatic Interactions:
HIS A 69 ND1	ARG B 18 NH1	3.036	INTER-CHAIN
HIS A 69 NE2	ARG B 18 NH1	3.790	INTER-CHAIN
ARG B 18 NH1	HIS B 69 NE2	4.254	INTRA-CHAIN
ARG B 18 NH1	HIS A 69 NE2	3.790	INTER-CHAIN
ARG B 18 NH1	HIS B 127 NE2	6.939	INTRA-CHAIN
ARG B 18 NH2	HIS B 69 NE2	5.987	INTRA-CHAIN
ARG B 18 NH2	HIS A 69 NE2	3.474	INTER-CHAIN
ARG B 18 NH2	HIS B 127 NE2	8.432	INTRA-CHAIN
HIS B 69 ND1	ARG B 18 NH1	3.881	INTRA-CHAIN
HIS B 69 NE2	ARG B 18 NH1	4.254	INTRA-CHAIN
HIS B 127 ND1	ARG B 18 NH1	5.481	INTRA-CHAIN
HIS B 127 NE2	ARG B 18 NH1	6.939	INTRA-CHAIN

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Protrusion Index:
ARG B 18 N	0.42
ARG B 18 CA	0.37
ARG B 18 C	0.28
ARG B 18 O	0.18
ARG B 18 CB	0.41
ARG B 18 CG	0.49
ARG B 18 CD	0.48
ARG B 18 NE	0.44
ARG B 18 CZ	0.43
ARG B 18 NH1	0.46
ARG B 18 NH2	0.41

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Salt bridges:
GLU B 17	ARG B 18	2.251	INTRA-CHAIN
ARG B 18	GLU A 162	3.185	INTER-CHAIN

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Van der Waal's Interactions:
ARG B 18 NH2 1506	MET B 20 CE 1525	-0.355	INTRA-CHAIN
ARG B 18 NH2 1506	HIS B 69 NE2 1888	-0.040	INTRA-CHAIN
ARG B 18 NH2 1506	HIS B 127 NE2 2387	-0.310	INTRA-CHAIN
ARG B 18 NH2 1506	TYR B 130 OH 2417	-0.083	INTRA-CHAIN
ARG B 18 NH2 1506	LEU A 158 CD2 1201	-0.011	INTER-CHAIN
ARG B 18 NH2 1506	PRO A 159 CD 1208	-0.016	INTER-CHAIN