Structural features of residue 23 in chain A

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Electrostatic Interactions:
HIS A 2 NE2	HIS A 23 NE2	1.571	INTRA-CHAIN
ASP A 7 OD1	HIS A 23 ND1	-1.351	INTRA-CHAIN
ASP A 7 OD2	HIS A 23 ND1	-1.551	INTRA-CHAIN
ASP A 22 OD1	HIS A 23 ND1	-2.463	INTRA-CHAIN
ASP A 22 OD2	HIS A 23 ND1	-2.519	INTRA-CHAIN
HIS A 23 ND1	ASP A 7 OD1	-1.351	INTRA-CHAIN
HIS A 23 ND1	ARG B 15 NH1	2.711	INTER-CHAIN
HIS A 23 ND1	ASP A 22 OD1	-2.463	INTRA-CHAIN
HIS A 23 ND1	ARG A 24 NH1	4.199	INTRA-CHAIN
HIS A 23 ND1	ASP B 28 OD1	-1.969	INTER-CHAIN
HIS A 23 NE2	HIS A 2 NE2	1.571	INTRA-CHAIN
HIS A 23 NE2	ASP A 7 OD1	-1.373	INTRA-CHAIN
HIS A 23 NE2	ARG B 15 NH1	2.757	INTER-CHAIN
HIS A 23 NE2	ASP A 22 OD1	-2.613	INTRA-CHAIN
HIS A 23 NE2	ARG A 24 NH1	3.918	INTRA-CHAIN
HIS A 23 NE2	ASP B 28 OD1	-2.072	INTER-CHAIN
ARG A 24 NH1	HIS A 23 NE2	3.918	INTRA-CHAIN
ARG A 24 NH2	HIS A 23 NE2	3.168	INTRA-CHAIN
ARG B 15 NH1	HIS A 23 NE2	2.757	INTER-CHAIN
ARG B 15 NH2	HIS A 23 NE2	2.318	INTER-CHAIN
ASP B 28 OD1	HIS A 23 ND1	-1.969	INTER-CHAIN
ASP B 28 OD2	HIS A 23 ND1	-2.211	INTER-CHAIN

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Protrusion Index:
HIS A 23 N	1.34
HIS A 23 CA	1.24
HIS A 23 C	1.13
HIS A 23 O	0.93
HIS A 23 CB	0.80
HIS A 23 CG	0.80
HIS A 23 ND1	0.81
HIS A 23 CD2	0.78
HIS A 23 CE1	0.84
HIS A 23 NE2	0.81

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Salt bridges:
ASP A 22	HIS A 23	2.273	INTRA-CHAIN

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Van der Waal's Interactions:
HIS A 23 NE2 200	GLU B 37 O 1487	-0.009	INTER-CHAIN
HIS A 23 NE2 200	GLY B 38 O 1501	-1.363	INTER-CHAIN
HIS A 23 NE2 200	GLN B 39 NE2 1510	-0.025	INTER-CHAIN
HIS A 23 NE2 200	LEU B 40 CD2 1518	-0.089	INTER-CHAIN