Structural features of residue 20 in chain A

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Electrostatic Interactions:
ARG A 20 NH1	HIS A 28 NE2	2.405	INTRA-CHAIN
ARG A 20 NH1	ARG A 67 NH1	3.932	INTRA-CHAIN
ARG A 20 NH1	ARG A 67 NH2	3.850	INTRA-CHAIN
ARG A 20 NH2	ARG A 25 NH1	3.335	INTRA-CHAIN
ARG A 20 NH2	ARG A 25 NH2	3.067	INTRA-CHAIN
ARG A 20 NH2	HIS A 28 NE2	2.540	INTRA-CHAIN
ARG A 20 NH2	ARG A 67 NH1	3.659	INTRA-CHAIN
ARG A 20 NH2	ARG A 67 NH2	3.569	INTRA-CHAIN
ARG A 25 NH1	ARG A 20 NH2	3.335	INTRA-CHAIN
ARG A 25 NH2	ARG A 20 NH2	3.067	INTRA-CHAIN
HIS A 28 ND1	ARG A 20 NH1	2.205	INTRA-CHAIN
HIS A 28 NE2	ARG A 20 NH1	2.405	INTRA-CHAIN
ARG A 67 NH1	ARG A 20 NH1	3.932	INTRA-CHAIN
ARG A 67 NH1	ARG A 20 NH2	3.659	INTRA-CHAIN
ARG A 67 NH2	ARG A 20 NH1	3.850	INTRA-CHAIN
ARG A 67 NH2	ARG A 20 NH2	3.569	INTRA-CHAIN

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Protrusion Index:
ARG A 20 N	0.89
ARG A 20 CA	0.74
ARG A 20 C	0.62
ARG A 20 O	0.57
ARG A 20 CB	0.68
ARG A 20 CG	0.95
ARG A 20 CD	0.89
ARG A 20 NE	0.74
ARG A 20 CZ	0.75
ARG A 20 NH1	1.17
ARG A 20 NH2	0.77

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Salt bridges:
ARG A 20	ASP B 428	3.142	INTER-CHAIN

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Van der Waal's Interactions:
GLU A 17 OE2 127	ARG A 20 NH2 152	-0.160	INTRA-CHAIN
ARG A 20 NH2 152	ILE A 21 CD1 160	-0.013	INTRA-CHAIN
ARG A 20 NH2 152	TYR B 42 OH 3775	-0.009	INTER-CHAIN
ARG A 20 NH2 152	THR B 427 CG2 6813	-0.444	INTER-CHAIN
ARG A 20 NH2 152	ASP B 428 OD2 6821	-0.160	INTER-CHAIN
ARG A 20 NH2 152	ILE B 431 CD1 6841	-0.706	INTER-CHAIN