Structural features of residue 21 in chain A

*********************************
Electrostatic Interactions:
ARG A 21 NH1	ARG A 36 NH1	3.197	INTRA-CHAIN
ARG A 21 NH1	ARG A 36 NH2	3.548	INTRA-CHAIN
ARG A 21 NH1	ARG A 44 NH2	3.154	INTRA-CHAIN
ARG A 21 NH1	HIS A 256 NE2	2.733	INTRA-CHAIN
ARG A 21 NH2	ARG A 36 NH2	3.144	INTRA-CHAIN
ARG A 21 NH2	ARG B 96 NH1	3.105	INTER-CHAIN
ARG A 21 NH2	ARG B 96 NH2	2.979	INTER-CHAIN
ARG A 21 NH2	HIS A 256 NE2	2.817	INTRA-CHAIN
ARG A 36 NH1	ARG A 21 NH1	3.197	INTRA-CHAIN
ARG A 36 NH2	ARG A 21 NH1	3.548	INTRA-CHAIN
ARG A 36 NH2	ARG A 21 NH2	3.144	INTRA-CHAIN
ARG A 44 NH2	ARG A 21 NH1	3.154	INTRA-CHAIN
HIS A 256 ND1	ARG A 21 NH1	2.513	INTRA-CHAIN
HIS A 256 NE2	ARG A 21 NH1	2.733	INTRA-CHAIN
ARG B 96 NH1	ARG A 21 NH2	3.105	INTER-CHAIN
ARG B 96 NH2	ARG A 21 NH2	2.979	INTER-CHAIN

*********************************
Hydrogen bonds:

----------------------------------------------------------
|Res1 type| Res1 No.| Chain1| Res2 type| Res2 No.| Chain2|
----------------------------------------------------------
|        R|       21|      A|         R|       91|      B|
----------------------------------------------------------

*********************************
Protrusion Index:
ARG A 21 N	0.41
ARG A 21 CA	0.57
ARG A 21 C	0.56
ARG A 21 O	0.75
ARG A 21 CB	0.48
ARG A 21 CG	0.57
ARG A 21 CD	0.38
ARG A 21 NE	0.59
ARG A 21 CZ	0.63
ARG A 21 NH1	0.47
ARG A 21 NH2	0.74

*********************************
Van der Waal's Interactions:
GLN A 20 NE2 149	ARG A 21 NH2 160	-0.009	INTRA-CHAIN
ARG A 21 NH2 160	LEU B 92 CD2 2857	-0.058	INTER-CHAIN
ARG A 21 NH2 160	GLY B 94 O 2870	-0.014	INTER-CHAIN