Structural features of residue 30 in chain A

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Electrostatic Interactions:
HIS A 26 ND1	HIS A 30 ND1	0.989	INTRA-CHAIN
HIS A 26 ND1	HIS A 30 NE2	2.120	INTRA-CHAIN
HIS A 26 NE2	HIS A 30 ND1	0.854	INTRA-CHAIN
HIS A 26 NE2	HIS A 30 NE2	1.881	INTRA-CHAIN
ARG A 27 NH1	HIS A 30 NE2	3.399	INTRA-CHAIN
ARG A 27 NH2	HIS A 30 NE2	3.660	INTRA-CHAIN
HIS A 30 ND1	HIS A 26 ND1	0.989	INTRA-CHAIN
HIS A 30 ND1	HIS A 26 NE2	1.921	INTRA-CHAIN
HIS A 30 ND1	ARG A 27 NH1	2.918	INTRA-CHAIN
HIS A 30 ND1	HIS A 51 ND1	0.701	INTRA-CHAIN
HIS A 30 ND1	ASP B 138 OD1	-2.042	INTER-CHAIN
HIS A 30 NE2	HIS A 26 ND1	0.942	INTRA-CHAIN
HIS A 30 NE2	HIS A 26 NE2	1.881	INTRA-CHAIN
HIS A 30 NE2	ARG A 27 NH1	3.399	INTRA-CHAIN
HIS A 30 NE2	ASP B 138 OD1	-2.491	INTER-CHAIN
HIS A 51 ND1	HIS A 30 ND1	0.701	INTRA-CHAIN
ASP B 138 OD1	HIS A 30 ND1	-2.042	INTER-CHAIN
ASP B 138 OD2	HIS A 30 ND1	-1.684	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	0.74
HIS A 30 CA	0.57
HIS A 30 C	0.51
HIS A 30 O	0.44
HIS A 30 CB	0.38
HIS A 30 CG	0.41
HIS A 30 ND1	0.57
HIS A 30 CD2	0.38
HIS A 30 CE1	0.59
HIS A 30 NE2	0.45

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Van der Waal's Interactions:
GLY A 29 O 180	HIS A 30 NE2 190	-0.025	INTRA-CHAIN