Structural features of residue 21 in chain B

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Electrostatic Interactions:
ASP A 55 OD1	HIS B 21 ND1	-2.012	INTER-CHAIN
ASP A 55 OD2	HIS B 21 ND1	-2.152	INTER-CHAIN
ASP B 14 OD1	HIS B 21 ND1	-1.361	INTRA-CHAIN
ASP B 14 OD2	HIS B 21 ND1	-1.382	INTRA-CHAIN
HIS B 21 ND1	ASP B 14 OD1	-1.361	INTRA-CHAIN
HIS B 21 ND1	ARG B 27 NH1	5.006	INTRA-CHAIN
HIS B 21 ND1	ASP A 55 OD1	-2.012	INTER-CHAIN
HIS B 21 ND1	HIS B 67 ND1	0.700	INTRA-CHAIN
HIS B 21 ND1	HIS B 67 NE2	1.612	INTRA-CHAIN
HIS B 21 ND1	ASP B 143 OD1	-2.396	INTRA-CHAIN
HIS B 21 ND1	HIS B 144 ND1	1.175	INTRA-CHAIN
HIS B 21 ND1	HIS B 144 NE2	2.632	INTRA-CHAIN
HIS B 21 ND1	HIS B 176 ND1	1.032	INTRA-CHAIN
HIS B 21 ND1	HIS B 176 NE2	2.189	INTRA-CHAIN
HIS B 21 NE2	ARG B 27 NH1	5.212	INTRA-CHAIN
HIS B 21 NE2	ASP A 55 OD1	-1.820	INTER-CHAIN
HIS B 21 NE2	HIS B 67 ND1	0.752	INTRA-CHAIN
HIS B 21 NE2	HIS B 67 NE2	1.758	INTRA-CHAIN
HIS B 21 NE2	ASP B 143 OD1	-2.270	INTRA-CHAIN
HIS B 21 NE2	HIS B 144 ND1	1.157	INTRA-CHAIN
HIS B 21 NE2	HIS B 144 NE2	2.725	INTRA-CHAIN
HIS B 21 NE2	HIS B 176 ND1	1.224	INTRA-CHAIN
HIS B 21 NE2	HIS B 176 NE2	2.639	INTRA-CHAIN
ARG B 27 NH1	HIS B 21 NE2	5.212	INTRA-CHAIN
ARG B 27 NH2	HIS B 21 NE2	5.171	INTRA-CHAIN
HIS B 67 ND1	HIS B 21 ND1	0.700	INTRA-CHAIN
HIS B 67 ND1	HIS B 21 NE2	1.691	INTRA-CHAIN
HIS B 67 NE2	HIS B 21 ND1	0.717	INTRA-CHAIN
HIS B 67 NE2	HIS B 21 NE2	1.758	INTRA-CHAIN
ASP B 143 OD1	HIS B 21 ND1	-2.396	INTRA-CHAIN
ASP B 143 OD2	HIS B 21 ND1	-2.489	INTRA-CHAIN
HIS B 144 ND1	HIS B 21 ND1	1.175	INTRA-CHAIN
HIS B 144 ND1	HIS B 21 NE2	2.604	INTRA-CHAIN
HIS B 144 NE2	HIS B 21 ND1	1.170	INTRA-CHAIN
HIS B 144 NE2	HIS B 21 NE2	2.725	INTRA-CHAIN
HIS B 176 ND1	HIS B 21 ND1	1.032	INTRA-CHAIN
HIS B 176 ND1	HIS B 21 NE2	2.754	INTRA-CHAIN
HIS B 176 NE2	HIS B 21 ND1	0.973	INTRA-CHAIN
HIS B 176 NE2	HIS B 21 NE2	2.639	INTRA-CHAIN

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Protrusion Index:
HIS B 21 N	0.06
HIS B 21 CA	0.03
HIS B 21 C	0.07
HIS B 21 O	0.09
HIS B 21 CB	0.06
HIS B 21 CG	0.15
HIS B 21 ND1	0.16
HIS B 21 CD2	0.23
HIS B 21 CE1	0.29
HIS B 21 NE2	0.35

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Van der Waal's Interactions:
SER B 19 OG 145	HIS B 21 NE2 160	-0.015	INTRA-CHAIN
HIS B 21 NE2 160	ARG B 27 NH2 212	-0.017	INTRA-CHAIN
HIS B 21 NE2 160	PHE B 48 CZ 368	-0.073	INTRA-CHAIN
HIS B 21 NE2 160	ILE A 54 CD1 411	-0.157	INTER-CHAIN