Structural features of residue 61 in chain A

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Electrostatic Interactions:
HIS A 61 ND1	ARG B 12 NH1	2.809	INTER-CHAIN
HIS A 61 ND1	ASP B 21 OD1	-1.524	INTER-CHAIN
HIS A 61 ND1	ARG B 27 NH1	2.933	INTER-CHAIN
HIS A 61 ND1	ASP B 47 OD1	-1.549	INTER-CHAIN
HIS A 61 NE2	ARG B 12 NH1	2.360	INTER-CHAIN
HIS A 61 NE2	ASP B 21 OD1	-1.358	INTER-CHAIN
HIS A 61 NE2	ARG B 27 NH1	2.672	INTER-CHAIN
HIS A 61 NE2	ASP B 47 OD1	-1.645	INTER-CHAIN
ARG B 12 NH1	HIS A 61 NE2	2.360	INTER-CHAIN
ARG B 12 NH2	HIS A 61 NE2	2.120	INTER-CHAIN
ASP B 21 OD1	HIS A 61 ND1	-1.524	INTER-CHAIN
ASP B 21 OD2	HIS A 61 ND1	-1.385	INTER-CHAIN
ARG B 27 NH1	HIS A 61 NE2	2.672	INTER-CHAIN
ARG B 27 NH2	HIS A 61 NE2	2.549	INTER-CHAIN
ASP B 47 OD1	HIS A 61 ND1	-1.549	INTER-CHAIN
ASP B 47 OD2	HIS A 61 ND1	-1.562	INTER-CHAIN
ARG B 49 NH2	HIS A 61 NE2	2.175	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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|        I|       14|      B|         H|       61|      A|
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Protrusion Index:
HIS A 61 N	0.29
HIS A 61 CA	0.16
HIS A 61 C	0.12
HIS A 61 O	0.05
HIS A 61 CB	0.29
HIS A 61 CG	0.38
HIS A 61 ND1	0.36
HIS A 61 CD2	0.42
HIS A 61 CE1	0.51
HIS A 61 NE2	0.53

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Van der Waal's Interactions:
ILE B 45 CD1 1143	HIS A 61 NE2 422	-0.028	INTER-CHAIN