コメント "Gタンパク質結合受容体は,植物ホルモンアブシシ酸のためのプラズマ膜受容体である"
Christopher A Johnston1, Brenda R Temple, Jin-Gui Chen
1Department of Pharmacology, University of North Carolina, Chapel Hill, NC 27599, USA.
まとめ
アラビドプシス・タリアナのGCR2遺伝子は,アブシシ酸のGタンパク質結合受容体ではない可能性が高い. 代わりに,それはおそらくバクテリアのランチオニン合成酵素の植物同類である.
科学分野:
- 植物分子生物学 植物分子生物学
- バイオケミストリー バイオケミストリー
- 遺伝学 遺伝学とは
背景:
- アラビドプシス・タリアナのGCR2遺伝子は,アブシシス酸 (ABA) 信号伝達に関与する7つのトランスメブラン,Gタンパク質結合受容体 (GPCR) をコードすることが以前報告されていた.
- この識別は,植物ホルモンの知覚のための新しいメカニズムを示唆しました.
関連する概念動画
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G-protein Coupled Receptors
G-protein coupled receptors are ligand binding receptors that indirectly affect changes in the cell. The actual receptor is a single polypeptide that transverses the cell membrane seven times creating intracellular and extracellular loops. The extracellular loops create a ligand specific pocket which binds to neurotransmitters or hormones. The intracellular loops holds onto the G-protein.
G Protein-coupled Receptors
G Protein-Coupled Receptors or GPCRs are membrane-bound receptors that transiently associate with heterotrimeric G proteins and induce an appropriate response to sensory stimuli such as light, odors, hormones, cytokines, or neurotransmitters.
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GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
G Protein-coupled Receptors
G Protein-Coupled Receptors or GPCRs are membrane-bound receptors that transiently associate with heterotrimeric G proteins and induce an appropriate response to sensory stimuli such as light, odors, hormones, cytokines, or neurotransmitters.
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
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GPCRs are also called heptahelical, 7TM, or...
GPCRs are also called heptahelical, 7TM, or...


