Structural features of residue 21 in chain B

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Electrostatic Interactions:
ASP A 37 OD1	ASP B 21 OD1	2.871	INTER-CHAIN
GLU A 40 OE1	ASP B 21 OD2	2.866	INTER-CHAIN
GLU A 40 OE2	ASP B 21 OD2	3.039	INTER-CHAIN
ASP A 49 OD1	ASP B 21 OD1	2.777	INTER-CHAIN
ASP A 49 OD1	ASP B 21 OD2	2.745	INTER-CHAIN
ASP A 49 OD2	ASP B 21 OD1	3.277	INTER-CHAIN
ASP A 49 OD2	ASP B 21 OD2	3.223	INTER-CHAIN
GLU A 105 OE1	ASP B 21 OD2	3.095	INTER-CHAIN
GLU A 105 OE2	ASP B 21 OD2	3.016	INTER-CHAIN
ASP B 8 OD1	ASP B 21 OD2	2.869	INTRA-CHAIN
ASP B 11 OD1	ASP B 21 OD1	2.792	INTRA-CHAIN
ASP B 11 OD1	ASP B 21 OD2	3.239	INTRA-CHAIN
ASP B 11 OD2	ASP B 21 OD1	2.793	INTRA-CHAIN
ASP B 11 OD2	ASP B 21 OD2	3.194	INTRA-CHAIN
ASP B 21 OD1	ASP B 11 OD1	2.792	INTRA-CHAIN
ASP B 21 OD1	ASP B 11 OD2	2.793	INTRA-CHAIN
ASP B 21 OD1	GLU B 23 OE1	3.746	INTRA-CHAIN
ASP B 21 OD1	ASP A 37 OD1	2.871	INTER-CHAIN
ASP B 21 OD1	GLU A 40 OE1	3.357	INTER-CHAIN
ASP B 21 OD1	ASP A 49 OD1	2.777	INTER-CHAIN
ASP B 21 OD1	ASP A 49 OD2	3.277	INTER-CHAIN
ASP B 21 OD1	GLU A 105 OE1	3.056	INTER-CHAIN
ASP B 21 OD1	GLU B 212 OE1	2.877	INTRA-CHAIN
ASP B 21 OD2	ASP B 8 OD1	2.869	INTRA-CHAIN
ASP B 21 OD2	ASP B 11 OD1	3.239	INTRA-CHAIN
ASP B 21 OD2	ASP B 11 OD2	3.194	INTRA-CHAIN
ASP B 21 OD2	GLU B 23 OE1	3.431	INTRA-CHAIN
ASP B 21 OD2	GLU A 40 OE1	2.866	INTER-CHAIN
ASP B 21 OD2	HIS A 47 ND1	-1.386	INTER-CHAIN
ASP B 21 OD2	ASP A 49 OD1	2.745	INTER-CHAIN
ASP B 21 OD2	ASP A 49 OD2	3.223	INTER-CHAIN
ASP B 21 OD2	GLU A 105 OE1	3.095	INTER-CHAIN
GLU B 23 OE1	ASP B 21 OD2	3.431	INTRA-CHAIN
GLU B 23 OE2	ASP B 21 OD2	4.153	INTRA-CHAIN
GLU B 212 OE2	ASP B 21 OD2	2.693	INTRA-CHAIN

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Hydrogen bonds:

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|Res1 type| Res1 No.| Chain1| Res2 type| Res2 No.| Chain2|
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|        R|       43|      A|         D|       21|      B|
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Protrusion Index:
ASP B 21 N	0.39
ASP B 21 CA	0.60
ASP B 21 C	0.74
ASP B 21 O	0.95
ASP B 21 CB	0.89
ASP B 21 CG	0.98
ASP B 21 OD1	0.98
ASP B 21 OD2	1.02

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Salt bridges:
ASP B 21	ARG A 43	2.477	INTER-CHAIN

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Short Contacts:
ASP B 21 OD1	ARG A 43 NH2	-0.023	INTER-CHAIN

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Van der Waal's Interactions:
ARG B 17 NH2 2539	ASP B 21 OD2 2569	-2.193	INTRA-CHAIN
ILE B 20 CD1 2561	ASP B 21 OD2 2569	-0.017	INTRA-CHAIN
ASP B 21 OD2 2569	ARG A 43 NH2 358	-0.086	INTER-CHAIN