Structural features of residue 21 in chain A

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Electrostatic Interactions:
HIS A 14 ND1	ASP A 21 OD1	-1.560	INTRA-CHAIN
HIS A 14 NE2	ASP A 21 OD1	-1.606	INTRA-CHAIN
ASP A 21 OD1	HIS A 14 ND1	-1.560	INTRA-CHAIN
ASP A 21 OD1	GLU A 28 OE1	4.961	INTRA-CHAIN
ASP A 21 OD1	GLU A 31 OE1	2.754	INTRA-CHAIN
ASP A 21 OD1	GLU B 54 OE1	3.343	INTER-CHAIN
ASP A 21 OD1	GLU B 56 OE1	5.002	INTER-CHAIN
ASP A 21 OD1	ASP B 69 OD2	2.778	INTER-CHAIN
ASP A 21 OD1	ASP A 185 OD2	2.834	INTRA-CHAIN
ASP A 21 OD2	HIS A 14 ND1	-1.835	INTRA-CHAIN
ASP A 21 OD2	GLU A 28 OE1	5.406	INTRA-CHAIN
ASP A 21 OD2	GLU A 31 OE1	2.909	INTRA-CHAIN
ASP A 21 OD2	GLU A 35 OE1	2.797	INTRA-CHAIN
ASP A 21 OD2	GLU B 51 OE1	2.962	INTER-CHAIN
ASP A 21 OD2	GLU B 54 OE1	3.437	INTER-CHAIN
ASP A 21 OD2	GLU B 56 OE1	4.276	INTER-CHAIN
ASP A 21 OD2	ASP B 69 OD1	2.910	INTER-CHAIN
ASP A 21 OD2	ASP B 69 OD2	3.219	INTER-CHAIN
ASP A 21 OD2	ASP A 185 OD2	2.736	INTRA-CHAIN
GLU A 28 OE1	ASP A 21 OD2	5.406	INTRA-CHAIN
GLU A 28 OE2	ASP A 21 OD2	5.012	INTRA-CHAIN
GLU A 31 OE1	ASP A 21 OD2	2.909	INTRA-CHAIN
GLU A 35 OE1	ASP A 21 OD2	2.797	INTRA-CHAIN
ASP A 185 OD2	ASP A 21 OD1	2.834	INTRA-CHAIN
ASP A 185 OD2	ASP A 21 OD2	2.736	INTRA-CHAIN
GLU B 51 OE1	ASP A 21 OD2	2.962	INTER-CHAIN
GLU B 54 OE1	ASP A 21 OD2	3.437	INTER-CHAIN
GLU B 54 OE2	ASP A 21 OD2	3.303	INTER-CHAIN
GLU B 56 OE1	ASP A 21 OD2	4.276	INTER-CHAIN
GLU B 56 OE2	ASP A 21 OD2	4.137	INTER-CHAIN
ASP B 69 OD1	ASP A 21 OD2	2.910	INTER-CHAIN
ASP B 69 OD2	ASP A 21 OD1	2.778	INTER-CHAIN
ASP B 69 OD2	ASP A 21 OD2	3.219	INTER-CHAIN

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Salt bridges:
ASP A 21	ARG A 204	2.806	INTRA-CHAIN
ASP A 21	LYS A 22	3.001	INTRA-CHAIN

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Van der Waal's Interactions:
ASP A 21 OD2 183	ASN A 23 ND2 200	-0.146	INTRA-CHAIN
ASP A 21 OD2 183	THR A 24 CG2 207	-0.008	INTRA-CHAIN
ASP A 21 OD2 183	VAL B 55 CG2 2088	-0.007	INTER-CHAIN