Structural features of residue 18 in chain B

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Electrostatic Interactions:
ARG A 52 NH1	HIS B 18 NE2	4.821	INTER-CHAIN
ARG A 52 NH2	HIS B 18 NE2	4.910	INTER-CHAIN
ARG A 57 NH1	HIS B 18 NE2	3.063	INTER-CHAIN
ARG A 57 NH2	HIS B 18 NE2	2.558	INTER-CHAIN
ASP A 127 OD1	HIS B 18 ND1	-3.890	INTER-CHAIN
ASP A 127 OD2	HIS B 18 ND1	-3.753	INTER-CHAIN
ASP A 133 OD1	HIS B 18 ND1	-2.777	INTER-CHAIN
ASP A 133 OD2	HIS B 18 ND1	-3.371	INTER-CHAIN
ARG A 137 NH2	HIS B 18 NE2	2.203	INTER-CHAIN
HIS B 18 ND1	ASP B 21 OD1	-1.719	INTRA-CHAIN
HIS B 18 ND1	ARG A 52 NH1	4.291	INTER-CHAIN
HIS B 18 ND1	ARG B 57 NH1	2.183	INTRA-CHAIN
HIS B 18 ND1	ARG A 57 NH1	3.666	INTER-CHAIN
HIS B 18 ND1	ASP A 127 OD1	-3.890	INTER-CHAIN
HIS B 18 ND1	ASP B 127 OD1	-1.556	INTRA-CHAIN
HIS B 18 ND1	ASP A 133 OD1	-2.777	INTER-CHAIN
HIS B 18 NE2	ASP B 21 OD1	-1.671	INTRA-CHAIN
HIS B 18 NE2	ARG A 52 NH1	4.821	INTER-CHAIN
HIS B 18 NE2	ARG B 57 NH1	2.129	INTRA-CHAIN
HIS B 18 NE2	ARG A 57 NH1	3.063	INTER-CHAIN
HIS B 18 NE2	ASP A 127 OD1	-4.551	INTER-CHAIN
HIS B 18 NE2	ASP B 127 OD1	-1.422	INTRA-CHAIN
HIS B 18 NE2	ASP A 133 OD1	-3.553	INTER-CHAIN
ASP B 21 OD1	HIS B 18 ND1	-1.719	INTRA-CHAIN
ASP B 21 OD2	HIS B 18 ND1	-1.509	INTRA-CHAIN
ARG B 57 NH1	HIS B 18 NE2	2.129	INTRA-CHAIN
ARG B 57 NH2	HIS B 18 NE2	2.241	INTRA-CHAIN
ASP B 127 OD1	HIS B 18 ND1	-1.556	INTRA-CHAIN
ASP B 127 OD2	HIS B 18 ND1	-1.651	INTRA-CHAIN
ASP B 133 OD2	HIS B 18 ND1	-1.375	INTRA-CHAIN

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Protrusion Index:
HIS B 18 N	0.88
HIS B 18 CA	0.75
HIS B 18 C	0.93
HIS B 18 O	1.11
HIS B 18 CB	0.91
HIS B 18 CG	0.74
HIS B 18 ND1	0.75
HIS B 18 CD2	0.93
HIS B 18 CE1	0.83
HIS B 18 NE2	0.84

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Salt bridges:
GLU B 16	HIS B 18	3.197	INTRA-CHAIN
GLU B 17	HIS B 18	2.250	INTRA-CHAIN

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Van der Waal's Interactions:
HIS B 18 NE2 2452	ARG A 52 NH2 436	-0.012	INTER-CHAIN
HIS B 18 NE2 2452	ASP A 127 OD2 1005	-0.063	INTER-CHAIN
HIS B 18 NE2 2452	GLN A 130 NE2 1027	-0.009	INTER-CHAIN
HIS B 18 NE2 2452	ASP A 133 OD2 1049	-0.226	INTER-CHAIN