Structural features of residue 55 in chain A

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Electrostatic Interactions:
ASP A 37 OD1	HIS A 55 ND1	-1.436	INTRA-CHAIN
HIS A 55 ND1	ASP A 37 OD1	-1.436	INTRA-CHAIN
HIS A 55 ND1	ASP A 60 OD1	-1.596	INTRA-CHAIN
HIS A 55 ND1	HIS B 255 ND1	0.922	INTER-CHAIN
HIS A 55 ND1	HIS B 255 NE2	1.885	INTER-CHAIN
HIS A 55 ND1	ASP B 260 OD1	-1.652	INTER-CHAIN
HIS A 55 NE2	ASP A 37 OD1	-1.538	INTRA-CHAIN
HIS A 55 NE2	ASP A 60 OD1	-1.448	INTRA-CHAIN
HIS A 55 NE2	HIS B 255 ND1	0.848	INTER-CHAIN
HIS A 55 NE2	HIS B 255 NE2	1.732	INTER-CHAIN
HIS A 55 NE2	ASP B 260 OD1	-1.864	INTER-CHAIN
ASP A 60 OD1	HIS A 55 ND1	-1.596	INTRA-CHAIN
ASP A 60 OD2	HIS A 55 ND1	-1.765	INTRA-CHAIN
HIS B 255 ND1	HIS A 55 ND1	0.922	INTER-CHAIN
HIS B 255 ND1	HIS A 55 NE2	1.908	INTER-CHAIN
HIS B 255 NE2	HIS A 55 ND1	0.838	INTER-CHAIN
HIS B 255 NE2	HIS A 55 NE2	1.732	INTER-CHAIN
ASP B 260 OD1	HIS A 55 ND1	-1.652	INTER-CHAIN
ASP B 260 OD2	HIS A 55 ND1	-1.874	INTER-CHAIN

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Protrusion Index:
HIS A 55 N	1.08
HIS A 55 CA	0.91
HIS A 55 C	0.74
HIS A 55 O	0.50
HIS A 55 CB	0.80
HIS A 55 CG	1.17
HIS A 55 ND1	1.74
HIS A 55 CD2	1.15
HIS A 55 CE1	2.06
HIS A 55 NE2	1.64

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Salt bridges:
GLU A 54	HIS A 55	2.218	INTRA-CHAIN

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Van der Waal's Interactions:
HIS A 55 NE2 449	VAL A 58 CG2 473	-0.021	INTRA-CHAIN
HIS A 55 NE2 449	ILE B 257 CD1 1417	-0.148	INTER-CHAIN
HIS A 55 NE2 449	ASN B 261 ND2 1445	-0.055	INTER-CHAIN