Structural features of residue 20 in chain A

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Electrostatic Interactions:
ARG A 20 NH1	ARG A 25 NH1	3.354	INTRA-CHAIN
ARG A 20 NH1	ARG A 25 NH2	3.010	INTRA-CHAIN
ARG A 20 NH1	HIS A 28 NE2	2.569	INTRA-CHAIN
ARG A 20 NH1	ARG A 67 NH1	5.506	INTRA-CHAIN
ARG A 20 NH1	ARG A 67 NH2	4.498	INTRA-CHAIN
ARG A 20 NH2	ARG A 25 NH1	3.370	INTRA-CHAIN
ARG A 20 NH2	ARG A 25 NH2	2.988	INTRA-CHAIN
ARG A 20 NH2	HIS A 28 NE2	2.212	INTRA-CHAIN
ARG A 20 NH2	ARG A 67 NH1	7.551	INTRA-CHAIN
ARG A 20 NH2	ARG A 67 NH2	5.851	INTRA-CHAIN
ARG A 25 NH1	ARG A 20 NH1	3.354	INTRA-CHAIN
ARG A 25 NH1	ARG A 20 NH2	3.370	INTRA-CHAIN
ARG A 25 NH2	ARG A 20 NH1	3.010	INTRA-CHAIN
ARG A 25 NH2	ARG A 20 NH2	2.988	INTRA-CHAIN
HIS A 28 ND1	ARG A 20 NH1	2.389	INTRA-CHAIN
HIS A 28 NE2	ARG A 20 NH1	2.569	INTRA-CHAIN
ARG A 67 NH1	ARG A 20 NH1	5.506	INTRA-CHAIN
ARG A 67 NH1	ARG A 20 NH2	7.551	INTRA-CHAIN
ARG A 67 NH2	ARG A 20 NH1	4.498	INTRA-CHAIN
ARG A 67 NH2	ARG A 20 NH2	5.851	INTRA-CHAIN

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Protrusion Index:
ARG A 20 N	0.75
ARG A 20 CA	0.68
ARG A 20 C	0.47
ARG A 20 O	0.46
ARG A 20 CB	0.72
ARG A 20 CG	0.59
ARG A 20 CD	0.71
ARG A 20 NE	0.52
ARG A 20 CZ	0.63
ARG A 20 NH1	0.71
ARG A 20 NH2	0.50

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Salt bridges:
ARG A 20	GLU B 431	3.078	INTER-CHAIN

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Van der Waal's Interactions:
GLU A 17 OE2 113	ARG A 20 NH2 138	-0.213	INTRA-CHAIN
ARG A 20 NH2 138	ILE A 21 CD1 146	-0.018	INTRA-CHAIN
ARG A 20 NH2 138	TYR B 42 OH 312	-0.009	INTER-CHAIN
ARG A 20 NH2 138	GLU A 54 OE2 401	-0.048	INTRA-CHAIN
ARG A 20 NH2 138	SER B 426 OG 3322	-0.010	INTER-CHAIN
ARG A 20 NH2 138	THR B 427 CG2 3329	-0.237	INTER-CHAIN
ARG A 20 NH2 138	ALA B 428 CB 3334	-0.115	INTER-CHAIN
ARG A 20 NH2 138	GLU B 431 OE2 3355	-0.033	INTER-CHAIN