Structural features of residue 503 in chain K

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Electrostatic Interactions:
HIS I 35 ND1	ARG K 503 NH1	2.331	INTER-CHAIN
HIS I 35 NE2	ARG K 503 NH1	2.481	INTER-CHAIN
ARG J 515 NH2	ARG K 503 NH1	3.213	INTER-CHAIN
ARG J 515 NH2	ARG K 503 NH2	3.068	INTER-CHAIN
HIS J 519 NE2	ARG K 503 NH1	2.160	INTER-CHAIN
HIS K 474 ND1	ARG K 503 NH1	2.174	INTRA-CHAIN
ARG K 475 NH1	ARG K 503 NH1	4.929	INTRA-CHAIN
ARG K 475 NH1	ARG K 503 NH2	4.877	INTRA-CHAIN
ARG K 475 NH2	ARG K 503 NH1	4.734	INTRA-CHAIN
ARG K 475 NH2	ARG K 503 NH2	4.536	INTRA-CHAIN
HIS K 502 ND1	ARG K 503 NH1	2.677	INTRA-CHAIN
HIS K 502 NE2	ARG K 503 NH1	2.370	INTRA-CHAIN
ARG K 503 NH1	HIS I 35 NE2	2.481	INTER-CHAIN
ARG K 503 NH1	ARG K 475 NH1	4.929	INTRA-CHAIN
ARG K 503 NH1	ARG K 475 NH2	4.734	INTRA-CHAIN
ARG K 503 NH1	HIS K 502 NE2	2.370	INTRA-CHAIN
ARG K 503 NH1	ARG J 515 NH2	3.213	INTER-CHAIN
ARG K 503 NH1	HIS J 519 NE2	2.160	INTER-CHAIN
ARG K 503 NH1	HIS K 531 NE2	2.404	INTRA-CHAIN
ARG K 503 NH2	HIS I 35 NE2	2.401	INTER-CHAIN
ARG K 503 NH2	ARG K 475 NH1	4.877	INTRA-CHAIN
ARG K 503 NH2	ARG K 475 NH2	4.536	INTRA-CHAIN
ARG K 503 NH2	HIS K 502 NE2	2.299	INTRA-CHAIN
ARG K 503 NH2	ARG J 515 NH2	3.068	INTER-CHAIN
ARG K 503 NH2	HIS K 531 NE2	2.465	INTRA-CHAIN
HIS K 531 ND1	ARG K 503 NH1	2.177	INTRA-CHAIN
HIS K 531 NE2	ARG K 503 NH1	2.404	INTRA-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|      503|      K|         D|       30|      I|
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Salt bridges:
HIS K 502	ARG K 503	2.851	INTRA-CHAIN

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Van der Waal's Interactions:
TYR K 443 OH 2936	ARG K 503 NH2 3431	-0.111	INTRA-CHAIN
ARG K 503 NH2 3431	ILE K 504 CD1 3439	-0.022	INTRA-CHAIN