National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)
R01HL144131
米国
引用
ジャーナル: Sci Adv / 年: 2022 タイトル: Molecular architecture of the human caveolin-1 complex. 著者: Jason C Porta / Bing Han / Alican Gulsevin / Jeong Min Chung / Yelena Peskova / Sarah Connolly / Hassane S Mchaourab / Jens Meiler / Erkan Karakas / Anne K Kenworthy / Melanie D Ohi / 要旨: Membrane-sculpting proteins shape the morphology of cell membranes and facilitate remodeling in response to physiological and environmental cues. Complexes of the monotopic membrane protein caveolin ...Membrane-sculpting proteins shape the morphology of cell membranes and facilitate remodeling in response to physiological and environmental cues. Complexes of the monotopic membrane protein caveolin function as essential curvature-generating components of caveolae, flask-shaped invaginations that sense and respond to plasma membrane tension. However, the structural basis for caveolin's membrane remodeling activity is currently unknown. Here, we show that, using cryo-electron microscopy, the human caveolin-1 complex is composed of 11 protomers organized into a tightly packed disc with a flat membrane-embedded surface. The structural insights suggest a previously unrecognized mechanism for how membrane-sculpting proteins interact with membranes and reveal how key regions of caveolin-1, including its scaffolding, oligomerization, and intramembrane domains, contribute to its function.
履歴
登録
2021年9月26日
登録サイト: RCSB / 処理サイト: RCSB
改定 1.0
2022年5月25日
Provider: repository / タイプ: Initial release
改定 1.1
2024年6月5日
Group: Data collection / カテゴリ: chem_comp_atom / chem_comp_bond