Structural features of residue 20 in chain A

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Electrostatic Interactions:
ARG A 20 NH1	ARG A 26 NH1	3.520	INTRA-CHAIN
ARG A 20 NH1	ARG A 26 NH2	4.137	INTRA-CHAIN
ARG A 20 NH1	ARG B 153 NH1	3.471	INTER-CHAIN
ARG A 20 NH2	ARG A 26 NH1	3.852	INTRA-CHAIN
ARG A 20 NH2	ARG A 26 NH2	4.699	INTRA-CHAIN
ARG A 20 NH2	ARG B 153 NH1	3.535	INTER-CHAIN
ARG A 20 NH2	ARG B 153 NH2	3.012	INTER-CHAIN
ARG A 26 NH1	ARG A 20 NH1	3.520	INTRA-CHAIN
ARG A 26 NH1	ARG A 20 NH2	3.852	INTRA-CHAIN
ARG A 26 NH2	ARG A 20 NH1	4.137	INTRA-CHAIN
ARG A 26 NH2	ARG A 20 NH2	4.699	INTRA-CHAIN
ARG B 153 NH1	ARG A 20 NH1	3.471	INTER-CHAIN
ARG B 153 NH1	ARG A 20 NH2	3.535	INTER-CHAIN
ARG B 153 NH2	ARG A 20 NH2	3.012	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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|        I|      156|      B|         R|       20|      A|
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Protrusion Index:
ARG A 20 N	0.98
ARG A 20 CA	0.98
ARG A 20 C	0.62
ARG A 20 O	0.45
ARG A 20 CB	1.29
ARG A 20 CG	1.48
ARG A 20 CD	1.94
ARG A 20 NE	2.11
ARG A 20 CZ	2.93
ARG A 20 NH1	3.53
ARG A 20 NH2	3.85

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Salt bridges:
GLU A 19	ARG A 20	2.255	INTRA-CHAIN

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Van der Waal's Interactions:
ARG A 20 NH2 138	LYS B 154 NZ 902	-0.010	INTER-CHAIN