Structural features of residue 21 in chain B

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Electrostatic Interactions:
ASP A 199 OD1	HIS B 21 ND1	-1.525	INTER-CHAIN
ASP A 199 OD2	HIS B 21 ND1	-1.687	INTER-CHAIN
ASP B 18 OD1	HIS B 21 ND1	-4.405	INTRA-CHAIN
ASP B 18 OD2	HIS B 21 ND1	-6.191	INTRA-CHAIN
HIS B 21 ND1	ASP B 18 OD1	-4.405	INTRA-CHAIN
HIS B 21 ND1	ARG A 198 NH1	2.120	INTER-CHAIN
HIS B 21 ND1	ASP A 199 OD1	-1.525	INTER-CHAIN
HIS B 21 NE2	ASP B 18 OD1	-3.122	INTRA-CHAIN
HIS B 21 NE2	ASP A 199 OD1	-1.430	INTER-CHAIN

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Protrusion Index:
HIS B 21 N	0.98
HIS B 21 CA	1.06
HIS B 21 C	0.81
HIS B 21 O	0.80
HIS B 21 CB	1.02
HIS B 21 CG	1.48
HIS B 21 ND1	1.67
HIS B 21 CD2	1.74
HIS B 21 CE1	2.42
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	-0.067	INTRA-CHAIN
ALA B 20 CB 4315	HIS B 21 NE2 4325	-0.037	INTRA-CHAIN