Structural features of residue 90 in chain A

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Electrostatic Interactions:
ASP A 88 OD1	HIS A 90 ND1	-1.891	INTRA-CHAIN
ASP A 88 OD2	HIS A 90 ND1	-1.692	INTRA-CHAIN
ASP A 89 OD1	HIS A 90 ND1	-2.693	INTRA-CHAIN
ASP A 89 OD2	HIS A 90 ND1	-2.859	INTRA-CHAIN
HIS A 90 ND1	ASP A 88 OD1	-1.891	INTRA-CHAIN
HIS A 90 ND1	ASP A 89 OD1	-2.693	INTRA-CHAIN
HIS A 90 NE2	ASP A 88 OD1	-1.778	INTRA-CHAIN
HIS A 90 NE2	ASP A 89 OD1	-3.041	INTRA-CHAIN
ARG B 76 NH2	HIS A 90 NE2	2.118	INTER-CHAIN

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Protrusion Index:
HIS A 90 N	0.37
HIS A 90 CA	0.35
HIS A 90 C	0.26
HIS A 90 O	0.34
HIS A 90 CB	0.36
HIS A 90 CG	0.56
HIS A 90 ND1	0.75
HIS A 90 CD2	0.51
HIS A 90 CE1	0.86
HIS A 90 NE2	0.72

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Salt bridges:
ASP A 89	HIS A 90	2.260	INTRA-CHAIN

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Van der Waal's Interactions:
ASP A 89 OD2 674	HIS A 90 NE2 684	-0.024	INTRA-CHAIN
TRP B 49 CH2 367	HIS A 90 NE2 684	-0.028	INTER-CHAIN