- EMDB-11375: In cellulo nuclear pore complex in constricted conformation from ... -
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データベース: EMDB / ID: EMD-11375
タイトル
In cellulo nuclear pore complex in constricted conformation from energy depleted S. pombe cells
マップデータ
In cellulo nuclear pore complex with constricted diameter from energy depleted S. pombe cells
試料
複合体: energy depleted S. pombe cells
機能・相同性
機能・相同性情報
COPII-mediated vesicle transport / Transport of the SLBP independent Mature mRNA / Transport of Mature mRNA Derived from an Intronless Transcript / Transport of Mature mRNA derived from an Intron-Containing Transcript / Regulation of HSF1-mediated heat shock response / SUMOylation of SUMOylation proteins / SUMOylation of RNA binding proteins / Postmitotic nuclear pore complex (NPC) reformation / SUMOylation of chromatin organization proteins / Transcriptional regulation by small RNAs ...COPII-mediated vesicle transport / Transport of the SLBP independent Mature mRNA / Transport of Mature mRNA Derived from an Intronless Transcript / Transport of Mature mRNA derived from an Intron-Containing Transcript / Regulation of HSF1-mediated heat shock response / SUMOylation of SUMOylation proteins / SUMOylation of RNA binding proteins / Postmitotic nuclear pore complex (NPC) reformation / SUMOylation of chromatin organization proteins / Transcriptional regulation by small RNAs / GATOR2 complex / Seh1-associated complex / protein exit from endoplasmic reticulum / COPII-coated vesicle budding / nuclear pore inner ring / nuclear pore outer ring / nuclear pore organization / COPII vesicle coat / NLS-bearing protein import into nucleus / structural constituent of nuclear pore / RNA export from nucleus / vacuolar membrane / nucleocytoplasmic transport / poly(A)+ mRNA export from nucleus / positive regulation of TOR signaling / mRNA transport / nuclear pore / mRNA export from nucleus / positive regulation of TORC1 signaling / cellular response to amino acid starvation / nuclear periphery / protein export from nucleus / protein import into nucleus / nuclear envelope / protein transport / endoplasmic reticulum membrane / structural molecule activity / nucleus / cytosol / cytoplasm 類似検索 - 分子機能
ジャーナル: Science / 年: 2021 タイトル: Nuclear pores dilate and constrict in cellulo. 著者: Christian E Zimmerli / Matteo Allegretti / Vasileios Rantos / Sara K Goetz / Agnieszka Obarska-Kosinska / Ievgeniia Zagoriy / Aliaksandr Halavatyi / Gerhard Hummer / Julia Mahamid / Jan Kosinski / Martin Beck / 要旨: In eukaryotic cells, nuclear pore complexes (NPCs) fuse the inner and outer nuclear membranes and mediate nucleocytoplasmic exchange. They are made of 30 different nucleoporins and form a cylindrical ...In eukaryotic cells, nuclear pore complexes (NPCs) fuse the inner and outer nuclear membranes and mediate nucleocytoplasmic exchange. They are made of 30 different nucleoporins and form a cylindrical architecture around an aqueous central channel. This architecture is highly dynamic in space and time. Variations in NPC diameter have been reported, but the physiological circumstances and the molecular details remain unknown. Here, we combined cryo–electron tomography with integrative structural modeling to capture a molecular movie of the respective large-scale conformational changes in cellulo. Although NPCs of exponentially growing cells adopted a dilated conformation, they reversibly constricted upon cellular energy depletion or conditions of hypertonic osmotic stress. Our data point to a model where the nuclear envelope membrane tension is linked to the conformation of the NPC.