Structural features of residue 21 in chain B

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Electrostatic Interactions:
ASP A 102 OD1	ASP B 21 OD1	3.129	INTER-CHAIN
ASP A 102 OD1	ASP B 21 OD2	3.252	INTER-CHAIN
ASP A 102 OD2	ASP B 21 OD1	2.855	INTER-CHAIN
ASP A 102 OD2	ASP B 21 OD2	2.903	INTER-CHAIN
HIS A 111 ND1	ASP B 21 OD1	-1.557	INTER-CHAIN
HIS A 111 NE2	ASP B 21 OD1	-1.626	INTER-CHAIN
ASP B 21 OD1	GLU D 45 OE1	3.115	INTER-CHAIN
ASP B 21 OD1	GLU D 55 OE1	3.346	INTER-CHAIN
ASP B 21 OD1	GLU D 101 OE1	3.121	INTER-CHAIN
ASP B 21 OD1	ASP A 102 OD1	3.129	INTER-CHAIN
ASP B 21 OD1	ASP A 102 OD2	2.855	INTER-CHAIN
ASP B 21 OD1	HIS A 111 ND1	-1.557	INTER-CHAIN
ASP B 21 OD2	GLU D 45 OE1	2.789	INTER-CHAIN
ASP B 21 OD2	GLU D 55 OE1	2.850	INTER-CHAIN
ASP B 21 OD2	GLU D 101 OE1	3.137	INTER-CHAIN
ASP B 21 OD2	ASP A 102 OD1	3.252	INTER-CHAIN
ASP B 21 OD2	ASP A 102 OD2	2.903	INTER-CHAIN
ASP B 21 OD2	HIS A 111 ND1	-1.534	INTER-CHAIN
GLU D 45 OE1	ASP B 21 OD2	2.789	INTER-CHAIN
GLU D 55 OE1	ASP B 21 OD2	2.850	INTER-CHAIN
GLU D 55 OE2	ASP B 21 OD2	3.289	INTER-CHAIN
GLU D 101 OE1	ASP B 21 OD2	3.137	INTER-CHAIN
GLU D 101 OE2	ASP B 21 OD2	2.853	INTER-CHAIN

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Van der Waal's Interactions:
SER B 20 OG 1220	ASP B 21 OD2 1228	-0.010	INTRA-CHAIN
ASP B 21 OD2 1228	ASN A 104 ND2 877	-0.008	INTER-CHAIN
ASP B 21 OD2 1228	ARG A 107 NH2 904	-0.025	INTER-CHAIN