Tctex-1 augments G protein-coupled receptor-mediated Gs signaling by activating adenylyl cyclase

Autor: Ayano Chiba, Norimichi Nakahata, Takahiro Moriya, Jun Sukegawa, Masaki Saito, Takeya Sato
Rok vydání: 2021
Předmět:
Zdroj: Journal of Pharmacological Sciences, Vol 145, Iss 1, Pp 150-154 (2021)
ISSN: 1347-8613
DOI: 10.1016/j.jphs.2020.11.011
Popis: Proteins interacting with G protein-coupled receptors (GPCRs) can modulate signal transduction of these receptors. However, the regulatory mechanisms of the interacting proteins are diverse and largely unknown. We have previously shown that Tctex-1 (or DYNLT1) can interact with the parathyroid hormone receptor (PTHR). In the present study, we investigated the role of Tctex-1 in the PTHR signaling and found that Tctex-1 augmented the PTHR-mediated Gs/adenylyl cyclase (AC) pathway by activating AC regardless of the binding to PTHR. Furthermore, Tctex-1 directly bound to AC type 6. These data demonstrate a novel mechanism underlying GPCR/Gs signaling regulated by Tctex-1.
Databáze: OpenAIRE