Structural features of residue 21 in chain A

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Electrostatic Interactions:
ARG A 21 NH1	ARG B 96 NH2	3.014	INTER-CHAIN
ARG A 21 NH1	HIS A 256 NE2	3.208	INTRA-CHAIN
ARG A 21 NH2	ARG B 96 NH2	3.039	INTER-CHAIN
ARG A 21 NH2	HIS A 256 NE2	3.181	INTRA-CHAIN
HIS A 256 ND1	ARG A 21 NH1	2.872	INTRA-CHAIN
HIS A 256 NE2	ARG A 21 NH1	3.208	INTRA-CHAIN
ARG B 96 NH2	ARG A 21 NH1	3.014	INTER-CHAIN
ARG B 96 NH2	ARG A 21 NH2	3.039	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|       21|      A|         R|       91|      B|
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Protrusion Index:
ARG A 21 N	0.45
ARG A 21 CA	0.60
ARG A 21 C	0.59
ARG A 21 O	0.71
ARG A 21 CB	0.56
ARG A 21 CG	0.71
ARG A 21 CD	0.78
ARG A 21 NE	0.75
ARG A 21 CZ	0.97
ARG A 21 NH1	1.40
ARG A 21 NH2	0.86

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Van der Waal's Interactions:
ARG A 21 NH2 148	LEU B 92 CD2 3073	-0.049	INTER-CHAIN
ARG A 21 NH2 148	GLY B 94 O 3086	-0.016	INTER-CHAIN