Structural features of residue 31 in chain A

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Electrostatic Interactions:
ARG A 31 NH1	HIS B 37 NE2	2.350	INTER-CHAIN
ARG A 31 NH2	HIS B 37 NE2	2.269	INTER-CHAIN
HIS A 38 ND1	ARG A 31 NH1	2.139	INTRA-CHAIN
HIS B 37 NE2	ARG A 31 NH1	2.350	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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|        R|       31|      A|         D|       27|      B|
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|        K|       52|      B|         R|       31|      A|
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Protrusion Index:
ARG A 31 N	0.47
ARG A 31 CA	0.53
ARG A 31 C	0.34
ARG A 31 O	0.36
ARG A 31 CB	0.77
ARG A 31 CG	1.15
ARG A 31 CD	1.54
ARG A 31 NE	1.54
ARG A 31 CZ	1.54
ARG A 31 NH1	1.51
ARG A 31 NH2	2.11