passages.id: 1.0alpha7.train.1333.sent
passages.type: sentence
passages.text: The displacement of the C-tail likely removes a positively charged residue, Arg382, from the polar core, the neutralization of which  per se ( R382N mutation) has been shown to enhance  arrestin binding to  P-Rh*,  P-Rh, and  Rh* ( 15).
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