Structural features of residue 21 in chain A

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Electrostatic Interactions:
ARG A 21 NH1	HIS A 186 NE2	2.871	INTRA-CHAIN
ARG A 21 NH1	ARG A 188 NH1	4.725	INTRA-CHAIN
ARG A 21 NH1	ARG A 188 NH2	3.993	INTRA-CHAIN
ARG A 21 NH1	HIS B 207 NE2	2.504	INTER-CHAIN
ARG A 21 NH2	HIS A 186 NE2	3.538	INTRA-CHAIN
ARG A 21 NH2	ARG A 188 NH1	4.377	INTRA-CHAIN
ARG A 21 NH2	ARG A 188 NH2	3.683	INTRA-CHAIN
ARG A 21 NH2	HIS B 207 NE2	2.269	INTER-CHAIN
HIS A 27 ND1	ARG A 21 NH1	2.131	INTRA-CHAIN
HIS A 186 ND1	ARG A 21 NH1	3.057	INTRA-CHAIN
HIS A 186 NE2	ARG A 21 NH1	2.871	INTRA-CHAIN
ARG A 188 NH1	ARG A 21 NH1	4.725	INTRA-CHAIN
ARG A 188 NH1	ARG A 21 NH2	4.377	INTRA-CHAIN
ARG A 188 NH2	ARG A 21 NH1	3.993	INTRA-CHAIN
ARG A 188 NH2	ARG A 21 NH2	3.683	INTRA-CHAIN
HIS B 207 ND1	ARG A 21 NH1	2.847	INTER-CHAIN
HIS B 207 NE2	ARG A 21 NH1	2.504	INTER-CHAIN

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Protrusion Index:
ARG A 21 N	0.26
ARG A 21 CA	0.37
ARG A 21 C	0.41
ARG A 21 O	0.62
ARG A 21 CB	0.51
ARG A 21 CG	0.80
ARG A 21 CD	0.72
ARG A 21 NE	0.86
ARG A 21 CZ	1.00
ARG A 21 NH1	1.00
ARG A 21 NH2	1.24

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Van der Waal's Interactions:
ARG A 21 NH2 95	TYR B 208 OH 3027	-0.052	INTER-CHAIN