Structural features of residue 20 in chain A

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Electrostatic Interactions:
HIS A 20 ND1	ARG A 28 NH1	2.130	INTRA-CHAIN
HIS A 20 ND1	ASP A 61 OD1	-1.652	INTRA-CHAIN
HIS A 20 ND1	HIS A 64 ND1	0.883	INTRA-CHAIN
HIS A 20 ND1	HIS A 64 NE2	2.058	INTRA-CHAIN
HIS A 20 ND1	HIS A 66 ND1	1.960	INTRA-CHAIN
HIS A 20 ND1	HIS A 66 NE2	3.180	INTRA-CHAIN
HIS A 20 ND1	ASP A 70 OD1	-1.401	INTRA-CHAIN
HIS A 20 NE2	ARG A 28 NH1	2.295	INTRA-CHAIN
HIS A 20 NE2	ASP A 61 OD1	-1.936	INTRA-CHAIN
HIS A 20 NE2	ASP A 63 OD1	-1.464	INTRA-CHAIN
HIS A 20 NE2	HIS A 64 ND1	1.035	INTRA-CHAIN
HIS A 20 NE2	HIS A 64 NE2	2.366	INTRA-CHAIN
HIS A 20 NE2	HIS A 66 ND1	3.198	INTRA-CHAIN
HIS A 20 NE2	HIS A 66 NE2	4.316	INTRA-CHAIN
ARG A 28 NH1	HIS A 20 NE2	2.295	INTRA-CHAIN
ARG A 28 NH2	HIS A 20 NE2	2.332	INTRA-CHAIN
ASP A 61 OD1	HIS A 20 ND1	-1.652	INTRA-CHAIN
ASP A 61 OD2	HIS A 20 ND1	-1.603	INTRA-CHAIN
ASP A 63 OD2	HIS A 20 ND1	-1.390	INTRA-CHAIN
HIS A 64 ND1	HIS A 20 ND1	0.883	INTRA-CHAIN
HIS A 64 ND1	HIS A 20 NE2	2.329	INTRA-CHAIN
HIS A 64 NE2	HIS A 20 ND1	0.914	INTRA-CHAIN
HIS A 64 NE2	HIS A 20 NE2	2.366	INTRA-CHAIN
HIS A 66 ND1	HIS A 20 ND1	1.960	INTRA-CHAIN
HIS A 66 ND1	HIS A 20 NE2	7.196	INTRA-CHAIN
HIS A 66 NE2	HIS A 20 ND1	1.413	INTRA-CHAIN
HIS A 66 NE2	HIS A 20 NE2	4.316	INTRA-CHAIN
ASP A 70 OD1	HIS A 20 ND1	-1.401	INTRA-CHAIN
ASP B 70 OD2	HIS A 20 ND1	-1.387	INTER-CHAIN

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Protrusion Index:
HIS A 20 N	0.02
HIS A 20 CA	0.06
HIS A 20 C	0.07
HIS A 20 O	0.10
HIS A 20 CB	0.02
HIS A 20 CG	0.14
HIS A 20 ND1	0.20
HIS A 20 CD2	0.12
HIS A 20 CE1	0.26
HIS A 20 NE2	0.14

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Salt bridges:
HIS A 20	HIS A 66	3.136	INTRA-CHAIN

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Van der Waal's Interactions:
HIS A 20 NE2 137	VAL A 22 CG2 152	-0.472	INTRA-CHAIN
HIS A 20 NE2 137	HIS A 66 NE2 524	-0.043	INTRA-CHAIN
HIS A 20 NE2 137	TYR B 127 OH 2235	-0.028	INTER-CHAIN
HIS A 20 NE2 137	ILE B 128 CD1 2243	-0.240	INTER-CHAIN