Structures of a Complete Human V-ATPase Reveal Mechanisms of Its Assembly.
Structures of a Complete Human V-ATPase Reveal Mechanisms of Its Assembly.
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一个完整的人类v - atp酶的结构揭示其组装机制。
DOI:
10.1016/j.molcel.2020.09.029
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发表时间:
2020-11-05
期刊:
影响因子:
16
通讯作者:
Fu TM
中科院分区:
文献类型:
--
作者:
Wang L;Wu D;Robinson CV;Wu H;Fu TM
Vesicular- or vacuolar-type adenosine triphosphatases (V-ATPases) are ATP-driven proton pumps comprised of a cytoplasmic V1 complex for ATP hydrolysis and a membrane embedded Vo complex for proton transfer. They play important roles in the acidification of intracellular vesicles, organelles, and extracellular milieu in eukaryotes. Here we report cryo-electron microscopy structures of human V-ATPase in three rotational states at up to 2.9 Å resolution. Aided by mass spectrometry, we build all known protein subunits with associated N-linked glycans, and identify glycolipids and phospholipids in the Vo complex. We define ATP6AP1 as a structural hub for Vo complex assembly as it connects to multiple Vo subunits and phospholipids inside the c-ring. The glycolipids and the glycosylated Vo subunits form a luminal glycan coat critical for V-ATPase folding, localization and stability. Collectively, our studies provide mechanisms of V-ATPase assembly and biogenesis that rely on the integrated roles of ATP6AP1, glycans and lipids. Wang et al. report the mechanisms of human V-ATPase assembly. Cryo-EM structures of human V-ATPase combined with mass spectrometry analysis reveal that the protein subunits, glycans, glycolipids, and phospholipids are essential components of V-ATPase. Of note, subunit ATP6AP1, glycans, and lipids play important roles in V-ATPase assembly and biogenesis.
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DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
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Rubinstein, John L.
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Abbas, Yazan M.;Wu, Di;Rubinstein, John L.
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Rubinstein, John L.
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10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
DOI:
10.1126/science.aat4318
发表时间:
2018-05-11
期刊:
Science (New York, N.Y.)
影响因子:
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通讯作者:
Kühlbrandt W