Structural features of residue 21 in chain B

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Electrostatic Interactions:
ASP A 199 OD1	HIS B 21 ND1	-1.488	INTER-CHAIN
ASP A 199 OD2	HIS B 21 ND1	-1.649	INTER-CHAIN
ASP B 18 OD1	HIS B 21 ND1	-5.029	INTRA-CHAIN
ASP B 18 OD2	HIS B 21 ND1	-6.634	INTRA-CHAIN
HIS B 21 ND1	ASP B 18 OD1	-5.029	INTRA-CHAIN
HIS B 21 ND1	ASP A 199 OD1	-1.488	INTER-CHAIN
HIS B 21 NE2	ASP B 18 OD1	-3.400	INTRA-CHAIN
HIS B 21 NE2	ASP A 199 OD1	-1.416	INTER-CHAIN

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Protrusion Index:
HIS B 21 N	0.98
HIS B 21 CA	1.04
HIS B 21 C	0.78
HIS B 21 O	0.78
HIS B 21 CB	1.00
HIS B 21 CG	1.48
HIS B 21 ND1	1.74
HIS B 21 CD2	1.74
HIS B 21 CE1	2.36
HIS B 21 NE2	2.31

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Van der Waal's Interactions:
ASP B 18 OD2 4312	HIS B 21 NE2 4334	-0.096	INTRA-CHAIN
ALA B 20 CB 4324	HIS B 21 NE2 4334	-0.035	INTRA-CHAIN