Structural features of residue 61 in chain A

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Electrostatic Interactions:
ASP A 53 OD1	HIS A 61 ND1	-1.737	INTRA-CHAIN
ASP A 53 OD2	HIS A 61 ND1	-1.538	INTRA-CHAIN
ASP A 60 OD1	HIS A 61 ND1	-2.604	INTRA-CHAIN
ASP A 60 OD2	HIS A 61 ND1	-2.995	INTRA-CHAIN
HIS A 61 ND1	ASP A 53 OD1	-1.737	INTRA-CHAIN
HIS A 61 ND1	ASP A 60 OD1	-2.604	INTRA-CHAIN
HIS A 61 ND1	ARG B 87 NH1	2.218	INTER-CHAIN
HIS A 61 ND1	ASP B 91 OD1	-1.363	INTER-CHAIN
HIS A 61 ND1	ASP B 176 OD1	-1.476	INTER-CHAIN
HIS A 61 ND1	ASP B 180 OD1	-1.532	INTER-CHAIN
HIS A 61 ND1	ASP B 184 OD1	-1.381	INTER-CHAIN
HIS A 61 NE2	ASP A 53 OD1	-1.817	INTRA-CHAIN
HIS A 61 NE2	ASP A 60 OD1	-2.188	INTRA-CHAIN
HIS A 61 NE2	ARG B 87 NH1	2.555	INTER-CHAIN
HIS A 61 NE2	ASP B 91 OD1	-1.454	INTER-CHAIN
HIS A 61 NE2	ASP B 180 OD1	-1.339	INTER-CHAIN
ARG B 87 NH1	HIS A 61 NE2	2.555	INTER-CHAIN
ARG B 87 NH2	HIS A 61 NE2	2.701	INTER-CHAIN
ASP B 91 OD1	HIS A 61 ND1	-1.363	INTER-CHAIN
ASP B 91 OD2	HIS A 61 ND1	-1.421	INTER-CHAIN
ASP B 176 OD1	HIS A 61 ND1	-1.476	INTER-CHAIN
ASP B 180 OD1	HIS A 61 ND1	-1.532	INTER-CHAIN
ASP B 184 OD1	HIS A 61 ND1	-1.381	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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|        H|       61|      A|         T|       86|      B|
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Protrusion Index:
HIS A 61 N	0.28
HIS A 61 CA	0.16
HIS A 61 C	0.09
HIS A 61 O	0.05
HIS A 61 CB	0.15
HIS A 61 CG	0.20
HIS A 61 ND1	0.36
HIS A 61 CD2	0.20
HIS A 61 CE1	0.41
HIS A 61 NE2	0.29

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Van der Waal's Interactions:
HIS A 61 NE2 229	LEU B 82 CD2 430	-0.008	INTER-CHAIN
HIS A 61 NE2 229	PRO B 83 CD 437	-0.058	INTER-CHAIN
HIS A 61 NE2 229	LYS B 85 NZ 453	-0.031	INTER-CHAIN