Structural features of residue 21 in chain B

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Electrostatic Interactions:
ASP A 199 OD1	HIS B 21 ND1	-1.532	INTER-CHAIN
ASP A 199 OD2	HIS B 21 ND1	-1.685	INTER-CHAIN
ASP B 18 OD1	HIS B 21 ND1	-4.463	INTRA-CHAIN
ASP B 18 OD2	HIS B 21 ND1	-6.457	INTRA-CHAIN
HIS B 21 ND1	ASP B 18 OD1	-4.463	INTRA-CHAIN
HIS B 21 ND1	ARG A 198 NH1	2.141	INTER-CHAIN
HIS B 21 ND1	ASP A 199 OD1	-1.532	INTER-CHAIN
HIS B 21 NE2	ASP B 18 OD1	-3.155	INTRA-CHAIN
HIS B 21 NE2	ASP A 199 OD1	-1.433	INTER-CHAIN

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Protrusion Index:
HIS B 21 N	0.97
HIS B 21 CA	1.08
HIS B 21 C	0.80
HIS B 21 O	0.78
HIS B 21 CB	1.02
HIS B 21 CG	1.48
HIS B 21 ND1	1.71
HIS B 21 CD2	1.74
HIS B 21 CE1	2.36
HIS B 21 NE2	2.47

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Van der Waal's Interactions:
ASP B 18 OD2 4303	HIS B 21 NE2 4325	-0.078	INTRA-CHAIN
ALA B 20 CB 4315	HIS B 21 NE2 4325	-0.038	INTRA-CHAIN