Structural features of residue 21 in chain A

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Electrostatic Interactions:
ASP A 19 OD1	ASP A 21 OD1	3.452	INTRA-CHAIN
ASP A 19 OD1	ASP A 21 OD2	3.786	INTRA-CHAIN
ASP A 19 OD2	ASP A 21 OD1	3.497	INTRA-CHAIN
ASP A 19 OD2	ASP A 21 OD2	3.723	INTRA-CHAIN
ASP A 21 OD1	ASP A 19 OD1	3.452	INTRA-CHAIN
ASP A 21 OD1	ASP A 19 OD2	3.497	INTRA-CHAIN
ASP A 21 OD1	HIS A 25 ND1	-2.547	INTRA-CHAIN
ASP A 21 OD1	ASP B 103 OD1	2.989	INTER-CHAIN
ASP A 21 OD1	ASP B 103 OD2	2.723	INTER-CHAIN
ASP A 21 OD1	GLU B 124 OE1	3.447	INTER-CHAIN
ASP A 21 OD1	ASP B 129 OD1	3.254	INTER-CHAIN
ASP A 21 OD1	ASP B 129 OD2	3.531	INTER-CHAIN
ASP A 21 OD1	GLU B 132 OE1	3.154	INTER-CHAIN
ASP A 21 OD2	ASP A 19 OD1	3.786	INTRA-CHAIN
ASP A 21 OD2	ASP A 19 OD2	3.723	INTRA-CHAIN
ASP A 21 OD2	HIS A 25 ND1	-2.121	INTRA-CHAIN
ASP A 21 OD2	GLU B 124 OE1	3.883	INTER-CHAIN
ASP A 21 OD2	ASP B 129 OD1	2.962	INTER-CHAIN
ASP A 21 OD2	ASP B 129 OD2	3.173	INTER-CHAIN
ASP A 21 OD2	GLU B 132 OE1	2.734	INTER-CHAIN
HIS A 25 ND1	ASP A 21 OD1	-2.547	INTRA-CHAIN
HIS A 25 NE2	ASP A 21 OD1	-2.486	INTRA-CHAIN
ASP B 103 OD1	ASP A 21 OD1	2.989	INTER-CHAIN
ASP B 103 OD2	ASP A 21 OD1	2.723	INTER-CHAIN
GLU B 124 OE1	ASP A 21 OD2	3.883	INTER-CHAIN
GLU B 124 OE2	ASP A 21 OD2	3.358	INTER-CHAIN
ASP B 129 OD1	ASP A 21 OD1	3.254	INTER-CHAIN
ASP B 129 OD1	ASP A 21 OD2	2.962	INTER-CHAIN
ASP B 129 OD2	ASP A 21 OD1	3.531	INTER-CHAIN
ASP B 129 OD2	ASP A 21 OD2	3.173	INTER-CHAIN
GLU B 132 OE1	ASP A 21 OD2	2.734	INTER-CHAIN
GLU B 132 OE2	ASP A 21 OD2	2.989	INTER-CHAIN
HIS B 139 NE2	ASP A 21 OD1	-1.476	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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|        G|      127|      B|         D|       21|      A|
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Protrusion Index:
ASP A 21 N	0.32
ASP A 21 CA	0.45
ASP A 21 C	0.39
ASP A 21 O	0.34
ASP A 21 CB	0.69
ASP A 21 CG	0.98
ASP A 21 OD1	0.91
ASP A 21 OD2	1.40

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Van der Waal's Interactions:
GLY A 20 O 140	ASP A 21 OD2 148	-0.035	INTRA-CHAIN
ASP A 21 OD2 148	GLY A 24 O 167	-0.059	INTRA-CHAIN
ASP A 21 OD2 148	LYS A 26 NZ 186	-0.117	INTRA-CHAIN
ASP A 21 OD2 148	LYS B 126 NZ 980	-0.045	INTER-CHAIN
ASP A 21 OD2 148	GLY B 127 O 984	-0.014	INTER-CHAIN