Structural features of residue 21 in chain B

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Electrostatic Interactions:
GLU A 54 OE1	ASP B 21 OD2	3.890	INTER-CHAIN
GLU A 54 OE2	ASP B 21 OD2	4.616	INTER-CHAIN
GLU A 56 OE1	ASP B 21 OD2	4.847	INTER-CHAIN
GLU A 56 OE2	ASP B 21 OD2	3.933	INTER-CHAIN
ASP A 69 OD1	ASP B 21 OD2	2.831	INTER-CHAIN
ASP A 69 OD2	ASP B 21 OD1	2.890	INTER-CHAIN
ASP A 69 OD2	ASP B 21 OD2	3.346	INTER-CHAIN
HIS B 14 ND1	ASP B 21 OD1	-1.614	INTRA-CHAIN
HIS B 14 NE2	ASP B 21 OD1	-1.626	INTRA-CHAIN
ASP B 21 OD1	HIS B 14 ND1	-1.614	INTRA-CHAIN
ASP B 21 OD1	GLU B 28 OE1	4.813	INTRA-CHAIN
ASP B 21 OD1	GLU B 31 OE1	2.784	INTRA-CHAIN
ASP B 21 OD1	GLU A 54 OE1	3.793	INTER-CHAIN
ASP B 21 OD1	GLU A 56 OE1	5.762	INTER-CHAIN
ASP B 21 OD1	ASP A 69 OD2	2.890	INTER-CHAIN
ASP B 21 OD1	ASP B 185 OD2	2.842	INTRA-CHAIN
ASP B 21 OD2	HIS B 14 ND1	-1.907	INTRA-CHAIN
ASP B 21 OD2	GLU B 28 OE1	5.093	INTRA-CHAIN
ASP B 21 OD2	GLU B 31 OE1	2.913	INTRA-CHAIN
ASP B 21 OD2	GLU B 35 OE1	2.801	INTRA-CHAIN
ASP B 21 OD2	GLU A 54 OE1	3.890	INTER-CHAIN
ASP B 21 OD2	GLU A 56 OE1	4.847	INTER-CHAIN
ASP B 21 OD2	ASP A 69 OD1	2.831	INTER-CHAIN
ASP B 21 OD2	ASP A 69 OD2	3.346	INTER-CHAIN
ASP B 21 OD2	ASP B 185 OD2	2.773	INTRA-CHAIN
GLU B 28 OE1	ASP B 21 OD2	5.093	INTRA-CHAIN
GLU B 28 OE2	ASP B 21 OD2	5.017	INTRA-CHAIN
GLU B 31 OE1	ASP B 21 OD2	2.913	INTRA-CHAIN
GLU B 35 OE1	ASP B 21 OD2	2.801	INTRA-CHAIN
ASP B 185 OD2	ASP B 21 OD1	2.842	INTRA-CHAIN
ASP B 185 OD2	ASP B 21 OD2	2.773	INTRA-CHAIN

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Salt bridges:
ASP B 21	ARG B 204	2.662	INTRA-CHAIN

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Van der Waal's Interactions:
THR B 17 CG2 1775	ASP B 21 OD2 1810	-0.013	INTRA-CHAIN
ASP B 21 OD2 1810	ASN B 23 ND2 1827	-0.071	INTRA-CHAIN
ASP B 21 OD2 1810	THR B 24 CG2 1834	-0.007	INTRA-CHAIN
ASP B 21 OD2 1810	VAL A 55 CG2 457	-0.007	INTER-CHAIN