Structural features of residue 281 in chain A

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Electrostatic Interactions:
ARG A 176 NH1	HIS A 281 NE2	2.537	INTRA-CHAIN
ARG A 176 NH2	HIS A 281 NE2	2.431	INTRA-CHAIN
ARG A 267 NH1	HIS A 281 NE2	2.166	INTRA-CHAIN
ARG A 267 NH2	HIS A 281 NE2	2.127	INTRA-CHAIN
HIS A 281 ND1	HIS B 167 ND1	0.813	INTER-CHAIN
HIS A 281 ND1	HIS B 167 NE2	2.055	INTER-CHAIN
HIS A 281 ND1	ASP B 168 OD1	-1.419	INTER-CHAIN
HIS A 281 ND1	ARG A 176 NH1	2.941	INTRA-CHAIN
HIS A 281 ND1	ARG A 267 NH1	2.296	INTRA-CHAIN
HIS A 281 ND1	ARG A 282 NH1	2.742	INTRA-CHAIN
HIS A 281 ND1	ASP A 293 OD1	-1.426	INTRA-CHAIN
HIS A 281 ND1	ASP B 313 OD1	-1.972	INTER-CHAIN
HIS A 281 ND1	ASP B 319 OD1	-1.411	INTER-CHAIN
HIS A 281 NE2	HIS B 167 ND1	0.696	INTER-CHAIN
HIS A 281 NE2	HIS B 167 NE2	1.724	INTER-CHAIN
HIS A 281 NE2	ARG A 176 NH1	2.537	INTRA-CHAIN
HIS A 281 NE2	ARG A 267 NH1	2.166	INTRA-CHAIN
HIS A 281 NE2	ARG A 282 NH1	2.558	INTRA-CHAIN
HIS A 281 NE2	ASP A 293 OD1	-1.413	INTRA-CHAIN
HIS A 281 NE2	ASP B 313 OD1	-2.315	INTER-CHAIN
HIS A 281 NE2	ASP B 319 OD1	-1.398	INTER-CHAIN
ARG A 282 NH1	HIS A 281 NE2	2.558	INTRA-CHAIN
ARG A 282 NH2	HIS A 281 NE2	2.366	INTRA-CHAIN
ASP A 293 OD1	HIS A 281 ND1	-1.426	INTRA-CHAIN
ASP A 293 OD2	HIS A 281 ND1	-1.530	INTRA-CHAIN
HIS B 167 ND1	HIS A 281 ND1	0.813	INTER-CHAIN
HIS B 167 ND1	HIS A 281 NE2	1.565	INTER-CHAIN
HIS B 167 NE2	HIS A 281 ND1	0.913	INTER-CHAIN
HIS B 167 NE2	HIS A 281 NE2	1.724	INTER-CHAIN
ASP B 168 OD1	HIS A 281 ND1	-1.419	INTER-CHAIN
ASP B 313 OD1	HIS A 281 ND1	-1.972	INTER-CHAIN
ASP B 313 OD2	HIS A 281 ND1	-1.697	INTER-CHAIN
ASP B 319 OD1	HIS A 281 ND1	-1.411	INTER-CHAIN
ASP B 319 OD2	HIS A 281 ND1	-1.552	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|      281|      A|         E|      312|      B|
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Protrusion Index:
HIS A 281 N	0.08
HIS A 281 CA	0.10
HIS A 281 C	0.05
HIS A 281 O	-0.01
HIS A 281 CB	0.13
HIS A 281 CG	0.16
HIS A 281 ND1	0.13
HIS A 281 CD2	0.29
HIS A 281 CE1	0.13
HIS A 281 NE2	0.29

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Salt bridges:
HIS A 281	ARG A 282	3.018	INTRA-CHAIN

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Van der Waal's Interactions:
HIS A 281 NE2 2138	GLY A 289 O 2197	-0.021	INTRA-CHAIN