Structural features of residue 309 in chain A

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Electrostatic Interactions:
HIS A 139 ND1	HIS A 309 NE2	1.538	INTRA-CHAIN
HIS A 139 NE2	HIS A 309 NE2	1.542	INTRA-CHAIN
ASP A 194 OD1	HIS A 309 ND1	-1.415	INTRA-CHAIN
ASP A 194 OD2	HIS A 309 ND1	-1.663	INTRA-CHAIN
ARG A 228 NH1	HIS A 309 NE2	2.181	INTRA-CHAIN
ARG A 308 NH1	HIS A 309 NE2	3.945	INTRA-CHAIN
ARG A 308 NH2	HIS A 309 NE2	3.138	INTRA-CHAIN
HIS A 309 ND1	ASP A 194 OD1	-1.415	INTRA-CHAIN
HIS A 309 ND1	ARG A 228 NH1	2.360	INTRA-CHAIN
HIS A 309 ND1	ARG A 308 NH1	4.014	INTRA-CHAIN
HIS A 309 NE2	HIS A 139 ND1	0.683	INTRA-CHAIN
HIS A 309 NE2	HIS A 139 NE2	1.542	INTRA-CHAIN
HIS A 309 NE2	ARG A 228 NH1	2.181	INTRA-CHAIN
HIS A 309 NE2	ARG A 308 NH1	3.945	INTRA-CHAIN

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Salt bridges:
ARG A 308	HIS A 309	2.697	INTRA-CHAIN

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Van der Waal's Interactions:
SER A 140 OG 3686	HIS A 309 NE2 5072	-0.008	INTRA-CHAIN
LEU A 144 CD2 3720	HIS A 309 NE2 5072	-0.050	INTRA-CHAIN
PRO A 302 CD 5014	HIS A 309 NE2 5072	-0.046	INTRA-CHAIN
ILE A 306 CD1 5047	HIS A 309 NE2 5072	-0.017	INTRA-CHAIN
HIS A 309 NE2 5072	THR D 342 CG2 5255	-0.012	INTER-CHAIN
HIS A 309 NE2 5072	TYR D 343 OH 5267	-0.033	INTER-CHAIN