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JoVE Journal Biochemistry
Medição da sinalização do receptor acoplado à proteína G via ligação GTP marcada com rádio
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Medição da sinalização do receptor acoplado à proteína G via ligação GTP marcada com rádio

Article DOI: 10.3791/55561-v • 10:13 min • June 9th, 2017
June 9th, 2017 •
*1, *1, 1, 1,2, 1,3,4
1The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, 2Department of Neurology and neurosurgery, Johns Hopkins University School of Medicine, 3Departments of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, 4Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
* These authors contributed equally

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A ligação de trifosfato de guanosina (GTP) é um dos primeiros eventos na ativação do receptor acoplado com proteína G (GPCR). Este protocolo descreve como caracterizar farmacologicamente as interacções específicas de GPCR-ligando, monitorizando a ligação do análogo de GTP radio-marcado, [ 35 S] guanosina-5'-O- (3-tio) trifosfato ([35S] GTPγS), em Resposta a um ligando de interesse.

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Bioquímica Problema 124 Fracionamento celular preparação de membrana GPCR agonista antagonista ligação de GTPγS farmacologia receptor de μ-opióide
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