Structural features of residue 21 in chain B

*********************************
Electrostatic Interactions:
ASP A 199 OD1	HIS B 21 ND1	-1.390	INTER-CHAIN
ASP A 199 OD2	HIS B 21 ND1	-1.520	INTER-CHAIN
ASP B 18 OD1	HIS B 21 ND1	-4.134	INTRA-CHAIN
ASP B 18 OD2	HIS B 21 ND1	-5.618	INTRA-CHAIN
HIS B 21 ND1	ASP B 18 OD1	-4.134	INTRA-CHAIN
HIS B 21 ND1	ASP A 199 OD1	-1.390	INTER-CHAIN
HIS B 21 NE2	ASP B 18 OD1	-3.304	INTRA-CHAIN
HIS B 21 NE2	ASP A 199 OD1	-1.493	INTER-CHAIN

*********************************
Protrusion Index:
HIS B 21 N	0.95
HIS B 21 CA	1.04
HIS B 21 C	0.80
HIS B 21 O	0.80
HIS B 21 CB	0.97
HIS B 21 CG	1.45
HIS B 21 ND1	1.94
HIS B 21 CD2	1.40
HIS B 21 CE1	2.47
HIS B 21 NE2	2.26

*********************************
Van der Waal's Interactions:
ASP B 18 OD2 4283	HIS B 21 NE2 4305	-0.151	INTRA-CHAIN
ALA B 20 CB 4295	HIS B 21 NE2 4305	-0.032	INTRA-CHAIN