Structural features of residue 503 in chain A

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Electrostatic Interactions:
ARG A 475 NH1	ARG A 503 NH1	4.929	INTRA-CHAIN
ARG A 475 NH1	ARG A 503 NH2	4.877	INTRA-CHAIN
ARG A 475 NH2	ARG A 503 NH1	4.734	INTRA-CHAIN
ARG A 475 NH2	ARG A 503 NH2	4.536	INTRA-CHAIN
HIS A 502 ND1	ARG A 503 NH1	2.677	INTRA-CHAIN
HIS A 502 NE2	ARG A 503 NH1	2.370	INTRA-CHAIN
ARG A 503 NH1	HIS D 35 NE2	2.481	INTER-CHAIN
ARG A 503 NH1	ARG A 475 NH1	4.929	INTRA-CHAIN
ARG A 503 NH1	ARG A 475 NH2	4.734	INTRA-CHAIN
ARG A 503 NH1	HIS A 502 NE2	2.370	INTRA-CHAIN
ARG A 503 NH1	ARG C 515 NH2	3.213	INTER-CHAIN
ARG A 503 NH1	HIS C 519 NE2	2.160	INTER-CHAIN
ARG A 503 NH1	HIS A 531 NE2	2.404	INTRA-CHAIN
ARG A 503 NH2	HIS D 35 NE2	2.401	INTER-CHAIN
ARG A 503 NH2	ARG A 475 NH1	4.877	INTRA-CHAIN
ARG A 503 NH2	ARG A 475 NH2	4.536	INTRA-CHAIN
ARG A 503 NH2	HIS A 502 NE2	2.299	INTRA-CHAIN
ARG A 503 NH2	ARG C 515 NH2	3.068	INTER-CHAIN
ARG A 503 NH2	HIS A 531 NE2	2.465	INTRA-CHAIN
HIS A 531 ND1	ARG A 503 NH1	2.177	INTRA-CHAIN
HIS A 531 NE2	ARG A 503 NH1	2.404	INTRA-CHAIN
ARG C 515 NH2	ARG A 503 NH1	3.213	INTER-CHAIN
ARG C 515 NH2	ARG A 503 NH2	3.068	INTER-CHAIN
HIS C 519 NE2	ARG A 503 NH1	2.160	INTER-CHAIN
HIS D 35 ND1	ARG A 503 NH1	2.331	INTER-CHAIN
HIS D 35 NE2	ARG A 503 NH1	2.481	INTER-CHAIN

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Van der Waal's Interactions:
TYR A 443 OH 657	ARG A 503 NH2 1152	-0.111	INTRA-CHAIN
ARG A 503 NH2 1152	ILE A 504 CD1 1160	-0.022	INTRA-CHAIN
ARG A 503 NH2 1152	ILE A 507 CD1 1183	-0.566	INTRA-CHAIN
ASP D 30 OD2 3753	ARG A 503 NH2 1152	-0.112	INTER-CHAIN
SER D 31 OG 3759	ARG A 503 NH2 1152	-0.144	INTER-CHAIN
SER D 32 OG 3765	ARG A 503 NH2 1152	-0.009	INTER-CHAIN