Structural features of residue 90 in chain B
D1	ARG B 90 NH1	2.811	INTER-CHAIN
HIS A 30 NE2	ARG B 90 NH1	2.651	INTER-CHAIN
HIS A 32 ND1	ARG B 90 NH1	2.368	INTER-CHAIN
HIS A 32 NE2	ARG B 90 NH1	2.549	INTER-CHAIN
HIS A 51 ND1	ARG B 90 NH1	2.192	INTER-CHAIN
HIS A 51 NE2	ARG B 90 NH1	2.552	INTER-CHAIN
HIS A 89 ND1	ARG B 90 NH1	2.243	INTER-CHAIN
HIS A 89 NE2	ARG B 90 NH1	2.179	INTER-CHAIN
ARG A 103 NH2	ARG B 90 NH1	3.329	INTER-CHAIN
HIS B 30 ND1	ARG B 90 NH1	3.428	INTRA-CHAIN
HIS B 30 NE2	ARG B 90 NH1	2.900	INTRA-CHAIN
HIS B 32 ND1	ARG B 90 NH1	3.763	INTRA-CHAIN
HIS B 32 NE2	ARG B 90 NH1	3.706	INTRA-CHAIN
HIS B 51 ND1	ARG B 90 NH1	2.395	INTRA-CHAIN
HIS B 51 NE2	ARG B 90 NH1	2.713	INTRA-CHAIN
HIS B 89 ND1	ARG B 90 NH1	2.871	INTRA-CHAIN
HIS B 89 NE2	ARG B 90 NH1	2.531	INTRA-CHAIN
ARG B 90 NH1	HIS B 30 NE2	2.900	INTRA-CHAIN
ARG B 90 NH1	HIS A 30 NE2	2.651	INTER-CHAIN
ARG B 90 NH1	HIS B 32 NE2	3.706	INTRA-CHAIN
ARG B 90 NH1	HIS A 32 NE2	2.549	INTER-CHAIN
ARG B 90 NH1	HIS B 51 NE2	2.713	INTRA-CHAIN
ARG B 90 NH1	HIS A 51 NE2	2.552	INTER-CHAIN
ARG B 90 NH1	HIS B 89 NE2	2.531	INTRA-CHAIN
ARG B 90 NH1	HIS A 89 NE2	2.179	INTER-CHAIN
ARG B 90 NH1	ARG A 103 NH2	3.329	INTER-CHAIN
ARG B 90 NH2	HIS B 30 NE2	2.844	INTRA-CHAIN
ARG B 90 NH2	HIS A 30 NE2	2.679	INTER-CHAIN
ARG B 90 NH2	HIS B 32 NE2	3.458	INTRA-CHAIN
ARG B 90 NH2	HIS A 32 NE2	2.788	INTER-CHAIN
ARG B 90 NH2	HIS B 51 NE2	2.956	INTRA-CHAIN
ARG B 90 NH2	HIS A 51 NE2	2.763	INTER-CHAIN
ARG B 90 NH2	HIS B 89 NE2	2.541	INTRA-CHAIN
ARG B 90 NH2	HIS A 89 NE2	2.275	INTER-CHAIN
ARG B 90 NH2	ARG B 128 NH1	3.030	INTRA-CHAIN
ARG B 128 NH1	ARG B 90 NH2	3.030	INTRA-CHAIN

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Protrusion Index:
ARG B 90 N	0.07
ARG B 90 CA	0.16
ARG B 90 C	0.14
ARG B 90 O	0.23
ARG B 90 CB	0.20
ARG B 90 CG	0.11
ARG B 90 CD	0.19
ARG B 90 NE	0.16
ARG B 90 CZ	0.14
ARG B 90 NH1	0.17
ARG B 90 NH2	0.13

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Salt bridges:
ASP B 31	ARG B 90	2.963	INTRA-CHAIN

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Van der Waal's Interactions:
GLU A 53 OE2 410	ARG B 90 NH2 2003	-0.502	INTER-CHAIN
ASP B 31 OD2 1553	ARG B 90 NH2 2003	-0.054	INTRA-CHAIN
ARG B 90 NH2 2003	LEU A 98 CD2 755	-0.027	INTER-CHAIN