Structural features of residue 30 in chain A

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Electrostatic Interactions:
HIS A 26 ND1	HIS A 30 ND1	0.907	INTRA-CHAIN
HIS A 26 ND1	HIS A 30 NE2	1.996	INTRA-CHAIN
HIS A 26 NE2	HIS A 30 ND1	0.893	INTRA-CHAIN
HIS A 26 NE2	HIS A 30 NE2	1.909	INTRA-CHAIN
ARG A 27 NH1	HIS A 30 NE2	3.400	INTRA-CHAIN
ARG A 27 NH2	HIS A 30 NE2	3.677	INTRA-CHAIN
HIS A 30 ND1	HIS A 26 ND1	0.907	INTRA-CHAIN
HIS A 30 ND1	HIS A 26 NE2	2.010	INTRA-CHAIN
HIS A 30 ND1	ARG A 27 NH1	2.960	INTRA-CHAIN
HIS A 30 ND1	HIS A 51 ND1	0.724	INTRA-CHAIN
HIS A 30 ND1	ASP B 138 OD1	-2.142	INTER-CHAIN
HIS A 30 NE2	HIS A 26 ND1	0.887	INTRA-CHAIN
HIS A 30 NE2	HIS A 26 NE2	1.909	INTRA-CHAIN
HIS A 30 NE2	ARG A 27 NH1	3.400	INTRA-CHAIN
HIS A 30 NE2	ASP B 138 OD1	-2.664	INTER-CHAIN
HIS A 51 ND1	HIS A 30 ND1	0.724	INTRA-CHAIN
ASP B 138 OD1	HIS A 30 ND1	-2.142	INTER-CHAIN
ASP B 138 OD2	HIS A 30 ND1	-1.745	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|       30|      A|         S|      137|      B|
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Protrusion Index:
HIS A 30 N	0.72
HIS A 30 CA	0.59
HIS A 30 C	0.51
HIS A 30 O	0.46
HIS A 30 CB	0.34
HIS A 30 CG	0.40
HIS A 30 ND1	0.57
HIS A 30 CD2	0.35
HIS A 30 CE1	0.57
HIS A 30 NE2	0.43

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Van der Waal's Interactions:
GLY A 29 O 180	HIS A 30 NE2 190	-0.026	INTRA-CHAIN