Structural features of residue 55 in chain A

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Electrostatic Interactions:
ASP A 37 OD1	HIS A 55 ND1	-1.443	INTRA-CHAIN
ARG A 52 NH1	HIS A 55 NE2	3.528	INTRA-CHAIN
ARG A 52 NH2	HIS A 55 NE2	3.145	INTRA-CHAIN
HIS A 55 ND1	ASP A 37 OD1	-1.443	INTRA-CHAIN
HIS A 55 ND1	ARG A 52 NH1	3.280	INTRA-CHAIN
HIS A 55 ND1	ASP A 60 OD1	-1.615	INTRA-CHAIN
HIS A 55 ND1	HIS B 255 ND1	0.916	INTER-CHAIN
HIS A 55 ND1	HIS B 255 NE2	1.864	INTER-CHAIN
HIS A 55 ND1	ASP B 260 OD1	-1.732	INTER-CHAIN
HIS A 55 NE2	ASP A 37 OD1	-1.567	INTRA-CHAIN
HIS A 55 NE2	ARG A 52 NH1	3.528	INTRA-CHAIN
HIS A 55 NE2	ASP A 60 OD1	-1.460	INTRA-CHAIN
HIS A 55 NE2	HIS B 255 ND1	0.831	INTER-CHAIN
HIS A 55 NE2	HIS B 255 NE2	1.690	INTER-CHAIN
HIS A 55 NE2	ASP B 260 OD1	-1.918	INTER-CHAIN
ASP A 60 OD1	HIS A 55 ND1	-1.615	INTRA-CHAIN
ASP A 60 OD2	HIS A 55 ND1	-1.794	INTRA-CHAIN
HIS B 255 ND1	HIS A 55 ND1	0.916	INTER-CHAIN
HIS B 255 ND1	HIS A 55 NE2	1.870	INTER-CHAIN
HIS B 255 NE2	HIS A 55 ND1	0.828	INTER-CHAIN
HIS B 255 NE2	HIS A 55 NE2	1.690	INTER-CHAIN
ASP B 260 OD1	HIS A 55 ND1	-1.732	INTER-CHAIN
ASP B 260 OD2	HIS A 55 ND1	-2.013	INTER-CHAIN

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Protrusion Index:
HIS A 55 N	0.86
HIS A 55 CA	0.81
HIS A 55 C	0.65
HIS A 55 O	0.47
HIS A 55 CB	0.69
HIS A 55 CG	1.02
HIS A 55 ND1	1.64
HIS A 55 CD2	1.02
HIS A 55 CE1	1.94
HIS A 55 NE2	1.57

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Salt bridges:
GLU A 54	HIS A 55	2.274	INTRA-CHAIN

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Van der Waal's Interactions:
GLU A 54 OE2 444	HIS A 55 NE2 454	-0.009	INTRA-CHAIN
HIS A 55 NE2 454	VAL A 58 CG2 478	-0.022	INTRA-CHAIN
HIS A 55 NE2 454	ILE B 257 CD1 1424	-0.154	INTER-CHAIN
HIS A 55 NE2 454	ASN B 261 ND2 1452	-0.056	INTER-CHAIN