Structural features of residue 21 in chain A

*********************************
Electrostatic Interactions:
ARG A 21 NH1	HIS A 60 NE2	2.297	INTRA-CHAIN
ARG A 21 NH1	HIS B 114 NE2	2.469	INTER-CHAIN
ARG A 21 NH2	HIS A 60 NE2	2.426	INTRA-CHAIN
ARG A 21 NH2	ARG B 108 NH2	3.189	INTER-CHAIN
ARG A 21 NH2	HIS B 114 NE2	2.918	INTER-CHAIN
HIS A 30 ND1	ARG A 21 NH1	2.351	INTRA-CHAIN
HIS A 60 ND1	ARG A 21 NH1	2.325	INTRA-CHAIN
HIS A 60 NE2	ARG A 21 NH1	2.297	INTRA-CHAIN
ARG B 108 NH2	ARG A 21 NH2	3.189	INTER-CHAIN
HIS B 114 ND1	ARG A 21 NH1	2.469	INTER-CHAIN
HIS B 114 NE2	ARG A 21 NH1	2.469	INTER-CHAIN

*********************************
Protrusion Index:
ARG A 21 N	0.38
ARG A 21 CA	0.56
ARG A 21 C	0.67
ARG A 21 O	0.71
ARG A 21 CB	0.75
ARG A 21 CG	0.93
ARG A 21 CD	0.69
ARG A 21 NE	0.84
ARG A 21 CZ	1.06
ARG A 21 NH1	1.27
ARG A 21 NH2	1.08

*********************************
Van der Waal's Interactions:
ARG A 21 NH2 80	PHE A 50 CZ 317	-0.012	INTRA-CHAIN
ARG A 21 NH2 80	VAL B 116 CG2 828	-0.162	INTER-CHAIN
ARG A 21 NH2 80	TYR B 118 OH 845	-0.056	INTER-CHAIN