Structural features of residue 4 in chain A

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Protrusion Index:
ARG A 4 N	0.86
ARG A 4 CA	0.95
ARG A 4 C	0.75
ARG A 4 O	0.75
ARG A 4 CB	1.40
ARG A 4 CG	1.51
ARG A 4 CD	2.02
ARG A 4 NE	2.31
ARG A 4 CZ	3.43
ARG A 4 NH1	4.34
ARG A 4 NH2	3.85

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Salt bridges:
LYS A 3	ARG A 4	2.933	INTRA-CHAIN