Structural features of residue 73 in chain X

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Electrostatic Interactions:
HIS A 8 NE2	ARG X 73 NH1	2.263	INTER-CHAIN
ARG B 37 NH1	ARG X 73 NH1	3.087	INTER-CHAIN
ARG B 37 NH2	ARG X 73 NH1	3.039	INTER-CHAIN
ARG X 42 NH1	ARG X 73 NH1	3.023	INTRA-CHAIN
ARG X 42 NH1	ARG X 73 NH2	3.123	INTRA-CHAIN
ARG X 42 NH2	ARG X 73 NH1	3.147	INTRA-CHAIN
ARG X 42 NH2	ARG X 73 NH2	3.205	INTRA-CHAIN
ARG X 47 NH1	ARG X 73 NH1	3.528	INTRA-CHAIN
ARG X 47 NH1	ARG X 73 NH2	3.677	INTRA-CHAIN
ARG X 47 NH2	ARG X 73 NH1	3.256	INTRA-CHAIN
ARG X 47 NH2	ARG X 73 NH2	3.443	INTRA-CHAIN
ARG X 73 NH1	HIS A 8 NE2	2.263	INTER-CHAIN
ARG X 73 NH1	ARG B 37 NH1	3.087	INTER-CHAIN
ARG X 73 NH1	ARG B 37 NH2	3.039	INTER-CHAIN
ARG X 73 NH1	ARG X 42 NH1	3.023	INTRA-CHAIN
ARG X 73 NH1	ARG X 42 NH2	3.147	INTRA-CHAIN
ARG X 73 NH1	ARG X 47 NH1	3.528	INTRA-CHAIN
ARG X 73 NH1	ARG X 47 NH2	3.256	INTRA-CHAIN
ARG X 73 NH2	ARG X 42 NH1	3.123	INTRA-CHAIN
ARG X 73 NH2	ARG X 42 NH2	3.205	INTRA-CHAIN
ARG X 73 NH2	ARG X 47 NH1	3.677	INTRA-CHAIN
ARG X 73 NH2	ARG X 47 NH2	3.443	INTRA-CHAIN

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Salt bridges:
GLU X 45	ARG X 73	3.160	INTRA-CHAIN

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Van der Waal's Interactions:
SER X 46 OG 1221	ARG X 73 NH2 1449	-0.152	INTRA-CHAIN
PRO X 51 CD 1258	ARG X 73 NH2 1449	-0.026	INTRA-CHAIN
ARG X 73 NH2 1449	HIS Y 130 CB 935	-0.009	INTER-CHAIN