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Using the novel HiBiT tag to label cell surface relaxin receptors for BRET proximity analysis.

Pharmacol Res Perspect. 2019; 
HoareBradley L,KocanMartina,BruellShoni,ScottDaniel J,BathgateRoss
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摘要

Relaxin family peptide 1 (RXFP1) is the receptor for relaxin a peptide hormone with important therapeutic potential. Like many G protein-coupled receptors (GPCRs), RXFP1 has been reported to form homodimers. Given the complex activation mechanism of RXFP1 by relaxin, we wondered whether homodimerization may be explicitly required for receptor activation, and therefore sought to determine if there is any relaxin-dependent change in RXFP1 proximity at the cell surface. Bioluminescence resonance energy transfer (BRET) between recombinantly tagged receptors is often used in GPCR proximity studies. RXFP1 targets poorly to the cell surface when overexpressed in cell lines, with the majority of the receptor pr... More

关键词

Bioluminescence resonance energy transfer,G protein‐coupled receptor,HiBiT,Nanoluc,RXFP1,Rel