Structural features of residue 23 in chain A

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Electrostatic Interactions:
HIS A 23 ND1	ARG A 25 NH1	2.921	INTRA-CHAIN
HIS A 23 ND1	HIS A 55 ND1	1.049	INTRA-CHAIN
HIS A 23 ND1	HIS A 55 NE2	2.091	INTRA-CHAIN
HIS A 23 ND1	HIS B 117 ND1	0.960	INTER-CHAIN
HIS A 23 ND1	HIS B 117 NE2	2.121	INTER-CHAIN
HIS A 23 NE2	ARG A 25 NH1	2.685	INTRA-CHAIN
HIS A 23 NE2	HIS A 55 ND1	0.863	INTRA-CHAIN
HIS A 23 NE2	HIS A 55 NE2	1.755	INTRA-CHAIN
HIS A 23 NE2	HIS B 117 ND1	0.802	INTER-CHAIN
HIS A 23 NE2	HIS B 117 NE2	1.776	INTER-CHAIN
ARG A 25 NH1	HIS A 23 NE2	2.685	INTRA-CHAIN
ARG A 25 NH2	HIS A 23 NE2	2.616	INTRA-CHAIN
HIS A 55 ND1	HIS A 23 ND1	1.049	INTRA-CHAIN
HIS A 55 ND1	HIS A 23 NE2	1.941	INTRA-CHAIN
HIS A 55 NE2	HIS A 23 ND1	0.929	INTRA-CHAIN
HIS A 55 NE2	HIS A 23 NE2	1.755	INTRA-CHAIN
HIS B 117 ND1	HIS A 23 ND1	0.960	INTER-CHAIN
HIS B 117 ND1	HIS A 23 NE2	1.804	INTER-CHAIN
HIS B 117 NE2	HIS A 23 ND1	0.943	INTER-CHAIN
HIS B 117 NE2	HIS A 23 NE2	1.776	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|       23|      A|         H|       23|      B|
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Protrusion Index:
HIS A 23 N	-0.03
HIS A 23 CA	-0.05
HIS A 23 C	-0.03
HIS A 23 O	-0.02
HIS A 23 CB	-0.07
HIS A 23 CG	-0.03
HIS A 23 ND1	0.03
HIS A 23 CD2	-0.04
HIS A 23 CE1	0.12
HIS A 23 NE2	0.00

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Van der Waal's Interactions:
HIS A 23 NE2 169	LEU B 27 CD2 1524	-0.020	INTER-CHAIN
HIS A 23 NE2 169	LEU A 27 CD2 208	-0.121	INTRA-CHAIN
HIS A 23 NE2 169	ALA A 49 CB 379	-0.067	INTRA-CHAIN