Structural features of residue 500 in chain B
D1	HIS B 500 ND1	-1.676	INTER-CHAIN
ASP A 362 OD2	HIS B 500 ND1	-1.690	INTER-CHAIN
HIS A 393 ND1	HIS B 500 ND1	0.782	INTER-CHAIN
HIS A 393 ND1	HIS B 500 NE2	1.650	INTER-CHAIN
HIS A 393 NE2	HIS B 500 ND1	0.854	INTER-CHAIN
HIS A 393 NE2	HIS B 500 NE2	1.779	INTER-CHAIN
ASP A 486 OD1	HIS B 500 ND1	-1.957	INTER-CHAIN
ASP A 486 OD2	HIS B 500 ND1	-1.694	INTER-CHAIN
ARG A 501 NH1	HIS B 500 NE2	2.718	INTER-CHAIN
ARG A 501 NH2	HIS B 500 NE2	2.452	INTER-CHAIN
ASP A 504 OD1	HIS B 500 ND1	-3.275	INTER-CHAIN
ASP A 504 OD2	HIS B 500 ND1	-3.645	INTER-CHAIN
ASP A 505 OD1	HIS B 500 ND1	-1.674	INTER-CHAIN
ASP A 505 OD2	HIS B 500 ND1	-1.571	INTER-CHAIN
ARG A 507 NH1	HIS B 500 NE2	4.033	INTER-CHAIN
ARG A 507 NH2	HIS B 500 NE2	3.383	INTER-CHAIN
HIS B 393 ND1	HIS B 500 ND1	0.956	INTRA-CHAIN
HIS B 393 ND1	HIS B 500 NE2	1.986	INTRA-CHAIN
HIS B 393 NE2	HIS B 500 ND1	0.955	INTRA-CHAIN
HIS B 393 NE2	HIS B 500 NE2	2.053	INTRA-CHAIN
HIS B 499 ND1	HIS B 500 ND1	1.265	INTRA-CHAIN
HIS B 499 ND1	HIS B 500 NE2	3.215	INTRA-CHAIN
HIS B 499 NE2	HIS B 500 ND1	1.155	INTRA-CHAIN
HIS B 499 NE2	HIS B 500 NE2	3.097	INTRA-CHAIN
HIS B 500 ND1	ASP A 362 OD1	-1.676	INTER-CHAIN
HIS B 500 ND1	HIS A 393 ND1	0.782	INTER-CHAIN
HIS B 500 ND1	HIS A 393 NE2	1.922	INTER-CHAIN
HIS B 500 ND1	HIS B 393 ND1	0.956	INTRA-CHAIN
HIS B 500 ND1	HIS B 393 NE2	2.148	INTRA-CHAIN
HIS B 500 ND1	ASP A 486 OD1	-1.957	INTER-CHAIN
HIS B 500 ND1	HIS B 499 ND1	1.265	INTRA-CHAIN
HIS B 500 ND1	HIS B 499 NE2	2.599	INTRA-CHAIN
HIS B 500 ND1	ARG B 501 NH1	3.031	INTRA-CHAIN
HIS B 500 ND1	ARG A 501 NH1	2.557	INTER-CHAIN
HIS B 500 ND1	ASP B 504 OD1	-2.888	INTRA-CHAIN
HIS B 500 ND1	ASP A 504 OD1	-3.275	INTER-CHAIN
HIS B 500 ND1	ASP A 505 OD1	-1.674	INTER-CHAIN
HIS B 500 ND1	ASP B 505 OD1	-2.894	INTRA-CHAIN
HIS B 500 ND1	ARG A 507 NH1	3.946	INTER-CHAIN
HIS B 500 ND1	ARG B 507 NH1	3.032	INTRA-CHAIN
HIS B 500 NE2	ASP A 362 OD1	-1.463	INTER-CHAIN
HIS B 500 NE2	ASP B 362 OD1	-1.369	INTRA-CHAIN
HIS B 500 NE2	HIS A 393 ND1	0.733	INTER-CHAIN
HIS B 500 NE2	HIS A 393 NE2	1.779	INTER-CHAIN
HIS B 500 NE2	HIS B 393 ND1	0.883	INTRA-CHAIN
HIS B 500 NE2	HIS B 393 NE2	2.053	INTRA-CHAIN
HIS B 500 NE2	ASP A 486 OD1	-1.710	INTER-CHAIN
HIS B 500 NE2	ASP B 486 OD1	-1.387	INTRA-CHAIN
HIS B 500 NE2	HIS B 499 ND1	1.429	INTRA-CHAIN
HIS B 500 NE2	HIS B 499 NE2	3.097	INTRA-CHAIN
HIS B 500 NE2	ARG B 501 NH1	2.828	INTRA-CHAIN
HIS B 500 NE2	ARG A 501 NH1	2.718	INTER-CHAIN
HIS B 500 NE2	ASP B 504 OD1	-2.396	INTRA-CHAIN
HIS B 500 NE2	ASP A 504 OD1	-3.458	INTER-CHAIN
HIS B 500 NE2	ASP A 505 OD1	-1.899	INTER-CHAIN
HIS B 500 NE2	ASP B 505 OD1	-2.223	INTRA-CHAIN
HIS B 500 NE2	ARG A 507 NH1	4.033	INTER-CHAIN
HIS B 500 NE2	ARG B 507 NH1	2.692	INTRA-CHAIN
ARG B 501 NH1	HIS B 500 NE2	2.828	INTRA-CHAIN
ARG B 501 NH2	HIS B 500 NE2	3.127	INTRA-CHAIN
ASP B 504 OD1	HIS B 500 ND1	-2.888	INTRA-CHAIN
ASP B 504 OD2	HIS B 500 ND1	-3.238	INTRA-CHAIN
ASP B 505 OD1	HIS B 500 ND1	-2.894	INTRA-CHAIN
ASP B 505 OD2	HIS B 500 ND1	-2.467	INTRA-CHAIN
ARG B 507 NH1	HIS B 500 NE2	2.692	INTRA-CHAIN
ARG B 507 NH2	HIS B 500 NE2	2.288	INTRA-CHAIN

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Protrusion Index:
HIS B 500 N	0.42
HIS B 500 CA	0.42
HIS B 500 C	0.37
HIS B 500 O	0.44
HIS B 500 CB	0.50
HIS B 500 CG	0.58
HIS B 500 ND1	0.63
HIS B 500 CD2	0.80
HIS B 500 CE1	0.77
HIS B 500 NE2	0.95

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Salt bridges:
HIS B 499	HIS B 500	2.879	INTRA-CHAIN

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Van der Waal's Interactions:
HIS B 500 NE2 2499	ASP A 504 OD2 1199	-0.101	INTER-CHAIN