Structural features of residue 250 in chain B
D1	HIS B 250 ND1	-1.605	INTER-CHAIN
ASP A 238 OD2	HIS B 250 ND1	-1.875	INTER-CHAIN
HIS B 250 ND1	ASP A 238 OD1	-1.605	INTER-CHAIN
HIS B 250 ND1	ASP B 252 OD1	-1.540	INTRA-CHAIN
HIS B 250 NE2	ASP A 238 OD1	-1.423	INTER-CHAIN
HIS B 250 NE2	ASP B 252 OD1	-1.451	INTRA-CHAIN
ASP B 252 OD1	HIS B 250 ND1	-1.540	INTRA-CHAIN
ASP B 252 OD2	HIS B 250 ND1	-1.718	INTRA-CHAIN

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Protrusion Index:
HIS B 250 N	0.60
HIS B 250 CA	0.54
HIS B 250 C	0.62
HIS B 250 O	0.53
HIS B 250 CB	0.28
HIS B 250 CG	0.34
HIS B 250 ND1	0.47
HIS B 250 CD2	0.40
HIS B 250 CE1	0.52
HIS B 250 NE2	0.50

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Van der Waal's Interactions:
PHE A 143 CZ 1089	HIS B 250 NE2 3866	-0.010	INTER-CHAIN
ASN A 144 ND2 1097	HIS B 250 NE2 3866	-0.011	INTER-CHAIN
TRP A 247 CH2 1886	HIS B 250 NE2 3866	-0.071	INTER-CHAIN
THR A 248 CG2 1893	HIS B 250 NE2 3866	-0.011	INTER-CHAIN
THR B 248 CG2 3847	HIS B 250 NE2 3866	-0.550	INTRA-CHAIN