Structural features of residue 21 in chain B

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Electrostatic Interactions:
ASP A 199 OD1	HIS B 21 ND1	-1.506	INTER-CHAIN
ASP A 199 OD2	HIS B 21 ND1	-1.668	INTER-CHAIN
ASP B 18 OD1	HIS B 21 ND1	-4.377	INTRA-CHAIN
ASP B 18 OD2	HIS B 21 ND1	-6.328	INTRA-CHAIN
HIS B 21 ND1	ASP B 18 OD1	-4.377	INTRA-CHAIN
HIS B 21 ND1	ASP A 199 OD1	-1.506	INTER-CHAIN
HIS B 21 NE2	ASP B 18 OD1	-3.109	INTRA-CHAIN
HIS B 21 NE2	ASP A 199 OD1	-1.413	INTER-CHAIN

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Protrusion Index:
HIS B 21 N	0.95
HIS B 21 CA	1.08
HIS B 21 C	0.83
HIS B 21 O	0.77
HIS B 21 CB	1.02
HIS B 21 CG	1.51
HIS B 21 ND1	1.78
HIS B 21 CD2	1.85
HIS B 21 CE1	2.42
HIS B 21 NE2	2.53

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Van der Waal's Interactions:
ASP B 18 OD2 4303	HIS B 21 NE2 4325	-0.073	INTRA-CHAIN
ALA B 20 CB 4315	HIS B 21 NE2 4325	-0.042	INTRA-CHAIN