Structural features of residue 20 in chain A

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Electrostatic Interactions:
HIS A 13 ND1	ASP A 20 OD1	-1.670	INTRA-CHAIN
HIS A 13 NE2	ASP A 20 OD1	-1.684	INTRA-CHAIN
HIS A 17 ND1	ASP A 20 OD1	-2.927	INTRA-CHAIN
HIS A 17 NE2	ASP A 20 OD1	-2.311	INTRA-CHAIN
ASP A 20 OD1	HIS A 13 ND1	-1.670	INTRA-CHAIN
ASP A 20 OD1	HIS A 17 ND1	-2.927	INTRA-CHAIN
ASP A 20 OD1	ASP A 27 OD1	3.404	INTRA-CHAIN
ASP A 20 OD1	ASP A 27 OD2	3.934	INTRA-CHAIN
ASP A 20 OD1	GLU D 55 OE1	4.576	INTER-CHAIN
ASP A 20 OD1	HIS D 93 ND1	-1.364	INTER-CHAIN
ASP A 20 OD1	ASP A 184 OD2	2.867	INTRA-CHAIN
ASP A 20 OD2	HIS A 13 ND1	-2.003	INTRA-CHAIN
ASP A 20 OD2	HIS A 17 ND1	-3.886	INTRA-CHAIN
ASP A 20 OD2	ASP A 27 OD1	3.525	INTRA-CHAIN
ASP A 20 OD2	ASP A 27 OD2	4.014	INTRA-CHAIN
ASP A 20 OD2	GLU A 34 OE1	2.835	INTRA-CHAIN
ASP A 20 OD2	GLU D 50 OE1	3.042	INTER-CHAIN
ASP A 20 OD2	GLU D 55 OE1	4.001	INTER-CHAIN
ASP A 20 OD2	HIS D 93 ND1	-1.508	INTER-CHAIN
ASP A 20 OD2	ASP A 184 OD2	2.800	INTRA-CHAIN
ASP A 27 OD1	ASP A 20 OD1	3.404	INTRA-CHAIN
ASP A 27 OD1	ASP A 20 OD2	3.525	INTRA-CHAIN
ASP A 27 OD2	ASP A 20 OD1	3.934	INTRA-CHAIN
ASP A 27 OD2	ASP A 20 OD2	4.014	INTRA-CHAIN
GLU A 30 OE2	ASP A 20 OD2	2.684	INTRA-CHAIN
GLU A 34 OE1	ASP A 20 OD2	2.835	INTRA-CHAIN
ASP A 184 OD2	ASP A 20 OD1	2.867	INTRA-CHAIN
ASP A 184 OD2	ASP A 20 OD2	2.800	INTRA-CHAIN
GLU D 50 OE1	ASP A 20 OD2	3.042	INTER-CHAIN
GLU D 50 OE2	ASP A 20 OD2	2.905	INTER-CHAIN
GLU D 55 OE1	ASP A 20 OD2	4.001	INTER-CHAIN
GLU D 55 OE2	ASP A 20 OD2	3.995	INTER-CHAIN
HIS D 93 ND1	ASP A 20 OD1	-1.364	INTER-CHAIN
HIS D 93 NE2	ASP A 20 OD1	-1.509	INTER-CHAIN

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Protrusion Index:
ASP A 20 N	0.12
ASP A 20 CA	0.18
ASP A 20 C	0.26
ASP A 20 O	0.32
ASP A 20 CB	0.30
ASP A 20 CG	0.56
ASP A 20 OD1	0.71
ASP A 20 OD2	0.69

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Salt bridges:
ASP A 20	ARG A 22	2.995	INTRA-CHAIN
ASP A 20	ARG A 203	2.731	INTRA-CHAIN
ASP A 20	ARG A 22	3.088	INTRA-CHAIN

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Van der Waal's Interactions:
HIS A 17 NE2 140	ASP A 20 OD2 167	-0.010	INTRA-CHAIN
ASP A 20 OD2 167	ARG A 22 NH2 187	-1.645	INTRA-CHAIN
ASP A 20 OD2 167	VAL D 54 CG2 5171	-0.830	INTER-CHAIN