Structural features of residue 4 in chain A

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Electrostatic Interactions:
ARG A 4 NH1	HIS A 21 NE2	2.225	INTRA-CHAIN
ARG A 4 NH1	HIS B 88 NE2	2.282	INTER-CHAIN
ARG A 4 NH2	HIS B 88 NE2	2.552	INTER-CHAIN
HIS A 21 ND1	ARG A 4 NH1	2.409	INTRA-CHAIN
HIS A 21 NE2	ARG A 4 NH1	2.225	INTRA-CHAIN
HIS B 88 ND1	ARG A 4 NH1	2.133	INTER-CHAIN
HIS B 88 NE2	ARG A 4 NH1	2.282	INTER-CHAIN

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Hydrogen bonds:

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|Res1 type| Res1 No.| Chain1| Res2 type| Res2 No.| Chain2|
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|        R|        4|      A|         E|       67|      B|
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Protrusion Index:
ARG A 4 N	0.21
ARG A 4 CA	0.24
ARG A 4 C	0.15
ARG A 4 O	0.10
ARG A 4 CB	0.38
ARG A 4 CG	0.46
ARG A 4 CD	0.74
ARG A 4 NE	0.81
ARG A 4 CZ	0.86
ARG A 4 NH1	0.91
ARG A 4 NH2	0.88

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Van der Waal's Interactions:
ARG A 4 NH2 26	GLU A 16 OE2 123	-0.009	INTRA-CHAIN