Structural features of residue 21 in chain A

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Electrostatic Interactions:
ARG A 18 NH1	ARG A 21 NH1	3.484	INTRA-CHAIN
ARG A 18 NH1	ARG A 21 NH2	3.100	INTRA-CHAIN
ARG A 18 NH2	ARG A 21 NH1	3.406	INTRA-CHAIN
ARG A 18 NH2	ARG A 21 NH2	3.086	INTRA-CHAIN
ARG A 21 NH1	ARG A 18 NH1	3.484	INTRA-CHAIN
ARG A 21 NH1	ARG A 18 NH2	3.406	INTRA-CHAIN
ARG A 21 NH1	ARG B 83 NH1	4.158	INTER-CHAIN
ARG A 21 NH1	ARG B 83 NH2	4.813	INTER-CHAIN
ARG A 21 NH1	ARG A 260 NH1	4.047	INTRA-CHAIN
ARG A 21 NH1	ARG A 260 NH2	4.961	INTRA-CHAIN
ARG A 21 NH2	ARG A 18 NH1	3.100	INTRA-CHAIN
ARG A 21 NH2	ARG A 18 NH2	3.086	INTRA-CHAIN
ARG A 21 NH2	ARG B 83 NH1	4.590	INTER-CHAIN
ARG A 21 NH2	ARG B 83 NH2	5.141	INTER-CHAIN
ARG A 21 NH2	ARG A 260 NH1	3.526	INTRA-CHAIN
ARG A 21 NH2	ARG A 260 NH2	4.254	INTRA-CHAIN
ARG A 260 NH1	ARG A 21 NH1	4.047	INTRA-CHAIN
ARG A 260 NH1	ARG A 21 NH2	3.526	INTRA-CHAIN
ARG A 260 NH2	ARG A 21 NH1	4.961	INTRA-CHAIN
ARG A 260 NH2	ARG A 21 NH2	4.254	INTRA-CHAIN
ARG B 83 NH1	ARG A 21 NH1	4.158	INTER-CHAIN
ARG B 83 NH1	ARG A 21 NH2	4.590	INTER-CHAIN
ARG B 83 NH2	ARG A 21 NH1	4.813	INTER-CHAIN
ARG B 83 NH2	ARG A 21 NH2	5.141	INTER-CHAIN

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Protrusion Index:
ARG A 21 N	0.60
ARG A 21 CA	0.83
ARG A 21 C	0.83
ARG A 21 O	1.02
ARG A 21 CB	0.86
ARG A 21 CG	0.89
ARG A 21 CD	1.00
ARG A 21 NE	0.98
ARG A 21 CZ	0.75
ARG A 21 NH1	0.56
ARG A 21 NH2	0.91

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Van der Waal's Interactions:
ASN A 20 ND2 159	ARG A 21 NH2 170	-0.015	INTRA-CHAIN
ARG A 21 NH2 170	ALA B 82 CB 3034	-0.020	INTER-CHAIN
ARG A 21 NH2 170	GLY B 84 O 3049	-0.015	INTER-CHAIN
ARG A 21 NH2 170	GLU A 265 OE2 1992	-0.012	INTRA-CHAIN