Structural features of residue 21 in chain A

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Electrostatic Interactions:
GLU A 20 OE1	LYS A 21 NZ	-3.270	INTRA-CHAIN
GLU A 20 OE2	LYS A 21 NZ	-4.604	INTRA-CHAIN
LYS A 21 NZ	GLU A 20 OE2	-4.604	INTRA-CHAIN
LYS A 21 NZ	LYS B 91 NZ	0.427	INTER-CHAIN
LYS A 21 NZ	LYS B 99 NZ	0.481	INTER-CHAIN
LYS A 21 NZ	GLU B 106 OE2	-1.390	INTER-CHAIN
LYS B 91 NZ	LYS A 21 NZ	0.427	INTER-CHAIN
LYS B 99 NZ	LYS A 21 NZ	0.481	INTER-CHAIN
GLU B 103 OE1	LYS A 21 NZ	-1.058	INTER-CHAIN
GLU B 104 OE1	LYS A 21 NZ	-1.068	INTER-CHAIN
GLU B 106 OE1	LYS A 21 NZ	-1.271	INTER-CHAIN
GLU B 106 OE2	LYS A 21 NZ	-1.390	INTER-CHAIN

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Protrusion Index:
LYS A 21 N	1.00
LYS A 21 CA	1.15
LYS A 21 C	0.97
LYS A 21 O	1.06
LYS A 21 CB	1.24
LYS A 21 CG	1.45
LYS A 21 CD	1.89
LYS A 21 CE	2.16
LYS A 21 NZ	2.53

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Salt bridges:
GLU A 20	LYS A 21	2.314	INTRA-CHAIN

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Van der Waal's Interactions:
GLU A 20 OE2 174	LYS A 21 NZ 183	-0.494	INTRA-CHAIN