Structural features of residue 23 in chain A

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Electrostatic Interactions:
HIS A 23 ND1	ARG B 14 NH1	4.399	INTER-CHAIN
HIS A 23 ND1	HIS A 28 ND1	0.732	INTRA-CHAIN
HIS A 23 ND1	HIS A 28 NE2	1.631	INTRA-CHAIN
HIS A 23 NE2	ARG B 14 NH1	3.564	INTER-CHAIN
HIS A 23 NE2	HIS A 28 ND1	0.844	INTRA-CHAIN
HIS A 23 NE2	HIS A 28 NE2	1.876	INTRA-CHAIN
HIS A 28 ND1	HIS A 23 ND1	0.732	INTRA-CHAIN
HIS A 28 ND1	HIS A 23 NE2	1.898	INTRA-CHAIN
HIS A 28 NE2	HIS A 23 ND1	0.725	INTRA-CHAIN
HIS A 28 NE2	HIS A 23 NE2	1.876	INTRA-CHAIN
ARG B 14 NH1	HIS A 23 NE2	3.564	INTER-CHAIN
ARG B 14 NH2	HIS A 23 NE2	2.904	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|       21|      B|
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Protrusion Index:
HIS A 23 N	0.18
HIS A 23 CA	0.16
HIS A 23 C	0.38
HIS A 23 O	0.49
HIS A 23 CB	0.18
HIS A 23 CG	0.29
HIS A 23 ND1	0.39
HIS A 23 CD2	0.25
HIS A 23 CE1	0.56
HIS A 23 NE2	0.37

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Salt bridges:
GLU A 10	HIS A 23	2.680	INTRA-CHAIN

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Van der Waal's Interactions:
GLU A 10 OE2 78	HIS A 23 NE2 180	-0.072	INTRA-CHAIN
VAL A 11 CG2 85	HIS A 23 NE2 180	-0.013	INTRA-CHAIN
PHE A 12 CZ 96	HIS A 23 NE2 180	-0.070	INTRA-CHAIN
HIS A 23 NE2 180	CYS A 24 SG 186	-0.018	INTRA-CHAIN
HIS A 23 NE2 180	GLY A 25 O 190	-1.127	INTRA-CHAIN
HIS A 23 NE2 180	SER A 26 OG 196	-0.121	INTRA-CHAIN