G.alpha.q protein variants and their use in the analysis and discovery of agonists and antagonists of chemosensory receptors

   
   

The invention provides a series of G.alpha..sub.q protein variants that functionally couple to sensory cell receptors such as taste GPCRs (TRs) and olfactory GPCRs (ORs) in an overly promiscuous manner. According to the invention, the functional coupling can be determined, for example, by measuring changes in intracellular IP3, or calcium. In a particular embodiment, the G.alpha..sub.q protein variants can be expressed in mammalian cell lines or Xenopus oocytes, and then evaluated using calcium fluorescence imaging and electrophysiological recording.

De uitvinding verstrekt een reeks eiwitvarianten G.alpha..sub.q die functioneel aan sensorische celreceptoren zoals smaak GPCRs (TRs) en reukgPCRs (ORs) op een overdreven gemengde manier koppelen. Volgens de uitvinding, kan de functionele koppeling worden bepaald, bijvoorbeeld, door veranderingen in intracellular IP3, of calcium te meten. In een bepaalde belichaming, kunnen de eiwitvarianten G.alpha..sub.q in zoogdiercellijnen of oocytes worden uitgedrukt Xenopus, en dan worden geƫvalueerd gebruikend de weergave van de calciumfluorescentie en elektrobiologische opname.

 
Web www.patentalert.com

< Dipeptidylpeptidases and methods of use

< MinK-related genes, formation of potassium channels and association with cardiac arrhythmia

> Apparatus and method for automated protein design

> Arabidopsis gene encoding a protein involved in the regulation of SAR gene expression in plants

~ 00144