Structural features of residue 4 in chain A

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Electrostatic Interactions:
GLU A 3 OE1	LYS A 4 NZ	-1.351	INTRA-CHAIN
GLU A 3 OE2	LYS A 4 NZ	-1.245	INTRA-CHAIN
LYS A 4 NZ	GLU A 3 OE2	-1.245	INTRA-CHAIN
LYS A 4 NZ	GLU B 88 OE2	-1.385	INTER-CHAIN
GLU B 88 OE1	LYS A 4 NZ	-1.302	INTER-CHAIN
GLU B 88 OE2	LYS A 4 NZ	-1.385	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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|        K|        4|      A|         I|       63|      B|
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Protrusion Index:
LYS A 4 N	0.75
LYS A 4 CA	0.91
LYS A 4 C	0.64
LYS A 4 O	0.47
LYS A 4 CB	0.72
LYS A 4 CG	0.83
LYS A 4 CD	0.80
LYS A 4 CE	0.95
LYS A 4 NZ	1.32

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Salt bridges:
GLU A 3	LYS A 4	2.233	INTRA-CHAIN