Structural features of residue 21 in chain A

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Electrostatic Interactions:
ASP A 21 OD1	GLU A 22 OE1	7.309	INTRA-CHAIN
ASP A 21 OD1	ASP A 26 OD1	3.616	INTRA-CHAIN
ASP A 21 OD1	ASP A 26 OD2	3.074	INTRA-CHAIN
ASP A 21 OD1	ASP B 51 OD1	3.223	INTER-CHAIN
ASP A 21 OD1	ASP B 51 OD2	2.788	INTER-CHAIN
ASP A 21 OD2	GLU A 22 OE1	5.433	INTRA-CHAIN
ASP A 21 OD2	ASP A 26 OD1	3.197	INTRA-CHAIN
ASP A 21 OD2	ASP A 26 OD2	2.787	INTRA-CHAIN
ASP A 21 OD2	ASP B 51 OD1	3.035	INTER-CHAIN
GLU A 22 OE1	ASP A 21 OD2	5.433	INTRA-CHAIN
GLU A 22 OE2	ASP A 21 OD2	5.470	INTRA-CHAIN
ASP A 26 OD1	ASP A 21 OD1	3.616	INTRA-CHAIN
ASP A 26 OD1	ASP A 21 OD2	3.197	INTRA-CHAIN
ASP A 26 OD2	ASP A 21 OD1	3.074	INTRA-CHAIN
ASP A 26 OD2	ASP A 21 OD2	2.787	INTRA-CHAIN
GLU A 44 OE2	ASP A 21 OD2	2.724	INTRA-CHAIN
ASP B 51 OD1	ASP A 21 OD1	3.223	INTER-CHAIN
ASP B 51 OD1	ASP A 21 OD2	3.035	INTER-CHAIN
ASP B 51 OD2	ASP A 21 OD1	2.788	INTER-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|       47|      B|         D|       21|      A|
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Protrusion Index:
ASP A 21 N	0.69
ASP A 21 CA	1.04
ASP A 21 C	1.48
ASP A 21 O	1.71
ASP A 21 CB	1.11
ASP A 21 CG	1.22
ASP A 21 OD1	1.06
ASP A 21 OD2	1.40

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Van der Waal's Interactions:
THR A 3 CG2 20	ASP A 21 OD2 163	-0.098	INTRA-CHAIN
GLY A 4 O 24	ASP A 21 OD2 163	-0.009	INTRA-CHAIN
ASP A 21 OD2 163	ARG B 47 NH2 875	-0.723	INTER-CHAIN