Structural features of residue 73 in chain A

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Electrostatic Interactions:
HIS A 30 ND1	ARG A 73 NH1	2.610	INTRA-CHAIN
HIS A 30 NE2	ARG A 73 NH1	2.474	INTRA-CHAIN
ARG A 72 NH1	ARG A 73 NH1	4.212	INTRA-CHAIN
ARG A 72 NH1	ARG A 73 NH2	4.444	INTRA-CHAIN
ARG A 72 NH2	ARG A 73 NH1	3.471	INTRA-CHAIN
ARG A 72 NH2	ARG A 73 NH2	3.614	INTRA-CHAIN
ARG A 73 NH1	HIS A 30 NE2	2.474	INTRA-CHAIN
ARG A 73 NH1	ARG B 72 NH1	4.183	INTER-CHAIN
ARG A 73 NH1	ARG B 72 NH2	3.503	INTER-CHAIN
ARG A 73 NH1	ARG A 72 NH1	4.212	INTRA-CHAIN
ARG A 73 NH1	ARG A 72 NH2	3.471	INTRA-CHAIN
ARG A 73 NH2	HIS A 30 NE2	2.123	INTRA-CHAIN
ARG A 73 NH2	ARG B 72 NH1	5.020	INTER-CHAIN
ARG A 73 NH2	ARG B 72 NH2	4.119	INTER-CHAIN
ARG A 73 NH2	ARG A 72 NH1	4.444	INTRA-CHAIN
ARG A 73 NH2	ARG A 72 NH2	3.614	INTRA-CHAIN
ARG B 72 NH1	ARG A 73 NH1	4.183	INTER-CHAIN
ARG B 72 NH1	ARG A 73 NH2	5.020	INTER-CHAIN
ARG B 72 NH2	ARG A 73 NH1	3.503	INTER-CHAIN
ARG B 72 NH2	ARG A 73 NH2	4.119	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	0.16
ARG A 73 O	0.21
ARG A 73 CB	0.15
ARG A 73 CG	0.18
ARG A 73 CD	0.11
ARG A 73 NE	0.16
ARG A 73 CZ	0.11
ARG A 73 NH1	0.07
ARG A 73 NH2	0.15

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Salt bridges:
ARG A 72	ARG A 73	2.844	INTRA-CHAIN

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Van der Waal's Interactions:
VAL B 49 CG2 2546	ARG A 73 NH2 517	-0.012	INTER-CHAIN
SER B 53 OG 2566	ARG A 73 NH2 517	-0.119	INTER-CHAIN
ASP B 70 OD2 2688	ARG A 73 NH2 517	-0.158	INTER-CHAIN