Structural features of residue 73 in chain A

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Electrostatic Interactions:
HIS A 30 ND1	ARG A 73 NH1	2.618	INTRA-CHAIN
HIS A 30 NE2	ARG A 73 NH1	2.487	INTRA-CHAIN
ARG A 72 NH1	ARG A 73 NH1	4.161	INTRA-CHAIN
ARG A 72 NH1	ARG A 73 NH2	4.426	INTRA-CHAIN
ARG A 72 NH2	ARG A 73 NH1	3.457	INTRA-CHAIN
ARG A 72 NH2	ARG A 73 NH2	3.607	INTRA-CHAIN
ARG A 73 NH1	HIS B 30 NE2	2.415	INTER-CHAIN
ARG A 73 NH1	HIS A 30 NE2	2.487	INTRA-CHAIN
ARG A 73 NH1	ARG B 72 NH1	4.137	INTER-CHAIN
ARG A 73 NH1	ARG B 72 NH2	3.497	INTER-CHAIN
ARG A 73 NH1	ARG A 72 NH1	4.161	INTRA-CHAIN
ARG A 73 NH1	ARG A 72 NH2	3.457	INTRA-CHAIN
ARG A 73 NH2	HIS B 30 NE2	2.124	INTER-CHAIN
ARG A 73 NH2	HIS A 30 NE2	2.136	INTRA-CHAIN
ARG A 73 NH2	ARG B 72 NH1	4.925	INTER-CHAIN
ARG A 73 NH2	ARG B 72 NH2	4.091	INTER-CHAIN
ARG A 73 NH2	ARG A 72 NH1	4.426	INTRA-CHAIN
ARG A 73 NH2	ARG A 72 NH2	3.607	INTRA-CHAIN
HIS B 30 ND1	ARG A 73 NH1	2.437	INTER-CHAIN
HIS B 30 NE2	ARG A 73 NH1	2.415	INTER-CHAIN
ARG B 72 NH1	ARG A 73 NH1	4.137	INTER-CHAIN
ARG B 72 NH1	ARG A 73 NH2	4.925	INTER-CHAIN
ARG B 72 NH2	ARG A 73 NH1	3.497	INTER-CHAIN
ARG B 72 NH2	ARG A 73 NH2	4.091	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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|        R|       73|      A|         D|       66|      B|
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Protrusion Index:
ARG A 73 N	0.30
ARG A 73 CA	0.26
ARG A 73 C	0.18
ARG A 73 O	0.25
ARG A 73 CB	0.16
ARG A 73 CG	0.16
ARG A 73 CD	0.11
ARG A 73 NE	0.18
ARG A 73 CZ	0.12
ARG A 73 NH1	0.06
ARG A 73 NH2	0.17

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Salt bridges:
ARG A 72	ARG A 73	2.835	INTRA-CHAIN

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Van der Waal's Interactions:
VAL B 49 CG2 2536	ARG A 73 NH2 523	-0.014	INTER-CHAIN
SER B 53 OG 2556	ARG A 73 NH2 523	-0.130	INTER-CHAIN
LEU B 54 CD2 2564	ARG A 73 NH2 523	-0.060	INTER-CHAIN
ASP B 70 OD2 2678	ARG A 73 NH2 523	-0.217	INTER-CHAIN