nuclear pore complex / nucleocytoplasmic transport / nucleoporin / membrane protein / translocase / TRANSPORT PROTEIN
機能・相同性
機能・相同性情報
response to spindle checkpoint signaling / nuclear pore linkers / regulation of protein desumoylation / mRNA export from nucleus in response to heat stress / chromosome, subtelomeric region / protein localization to nuclear inner membrane / nuclear pore inner ring / regulation of nucleocytoplasmic transport / nuclear pore central transport channel / transcription-dependent tethering of RNA polymerase II gene DNA at nuclear periphery ...response to spindle checkpoint signaling / nuclear pore linkers / regulation of protein desumoylation / mRNA export from nucleus in response to heat stress / chromosome, subtelomeric region / protein localization to nuclear inner membrane / nuclear pore inner ring / regulation of nucleocytoplasmic transport / nuclear pore central transport channel / transcription-dependent tethering of RNA polymerase II gene DNA at nuclear periphery / nuclear pore complex assembly / telomere tethering at nuclear periphery / nuclear pore organization / Transport of Mature mRNA derived from an Intron-Containing Transcript / nuclear pore cytoplasmic filaments / post-transcriptional tethering of RNA polymerase II gene DNA at nuclear periphery / Regulation of HSF1-mediated heat shock response / nuclear pore nuclear basket / tRNA export from nucleus / SUMOylation of SUMOylation proteins / protein localization to kinetochore / NLS-bearing protein import into nucleus / structural constituent of nuclear pore / SUMOylation of RNA binding proteins / nuclear localization sequence binding / RNA export from nucleus / SUMOylation of chromatin organization proteins / nucleocytoplasmic transport / poly(A)+ mRNA export from nucleus / regulation of mitotic nuclear division / ribosomal large subunit export from nucleus / mRNA transport / nuclear pore / ribosomal small subunit export from nucleus / nuclear periphery / chromosome segregation / promoter-specific chromatin binding / molecular condensate scaffold activity / phospholipid binding / protein import into nucleus / nuclear envelope / heterochromatin formation / protein transport / single-stranded DNA binding / nuclear membrane / amyloid fibril formation / cell division / chromatin binding / protein-containing complex binding / positive regulation of DNA-templated transcription / DNA binding / RNA binding / identical protein binding / nucleus 類似検索 - 分子機能
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
NIH R01 GM45377
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
NIH P41 GM109824
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
NIH R01 GM112108
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
NIH GM117212
米国
引用
ジャーナル: Mol Cell / 年: 2023 タイトル: Implications of a multiscale structure of the yeast nuclear pore complex. 著者: Christopher W Akey / Ignacia Echeverria / Christna Ouch / Ilona Nudelman / Yi Shi / Junjie Wang / Brian T Chait / Andrej Sali / Javier Fernandez-Martinez / Michael P Rout / 要旨: Nuclear pore complexes (NPCs) direct the nucleocytoplasmic transport of macromolecules. Here, we provide a composite multiscale structure of the yeast NPC, based on improved 3D density maps from ...Nuclear pore complexes (NPCs) direct the nucleocytoplasmic transport of macromolecules. Here, we provide a composite multiscale structure of the yeast NPC, based on improved 3D density maps from cryogenic electron microscopy and AlphaFold2 models. Key features of the inner and outer rings were integrated into a comprehensive model. We resolved flexible connectors that tie together the core scaffold, along with equatorial transmembrane complexes and a lumenal ring that anchor this channel within the pore membrane. The organization of the nuclear double outer ring reveals an architecture that may be shared with ancestral NPCs. Additional connections between the core scaffold and the central transporter suggest that under certain conditions, a degree of local organization is present at the periphery of the transport machinery. These connectors may couple conformational changes in the scaffold to the central transporter to modulate transport. Collectively, this analysis provides insights into assembly, transport, and NPC evolution.
モデルのタイプ: OTHER 詳細: C8 symmetrized NPC map segmented in CHIMERA with Segger to provide initial 3D map of the double outer ring, which was low pass filtered for the first reference.
最終 再構成
想定した対称性 - 点群: C1 (非対称) / アルゴリズム: FOURIER SPACE / 解像度のタイプ: BY AUTHOR / 解像度: 6.6 Å / 解像度の算出法: FSC 0.143 CUT-OFF / ソフトウェア - 名称: cryoSPARC (ver. 3.3.2) 詳細: Multibody extracted spoke image stack processed in CryoSPARC 使用した粒子像数: 208392
初期 角度割当
タイプ: MAXIMUM LIKELIHOOD / ソフトウェア - 名称: RELION (ver. 3.0.7) / 詳細: C1 symmetry used with Multibody particles
最終 角度割当
タイプ: MAXIMUM LIKELIHOOD / ソフトウェア - 名称: cryoSPARC (ver. 3.3.2) / ソフトウェア - 詳細: non-uniform refinement 詳細: C1 symmetry used to refine inner ring spoke with appropriate mask
最終 3次元分類
ソフトウェア - 名称: RELION (ver. 3.0.7)
FSC曲線 (解像度の算出)
-
原子モデル構築 1
初期モデル
Chain - Source name: Other / Chain - Initial model type: experimental model / 詳細: none
詳細
Rigid body docking of 3D map of Nucleoporins in the spoke complex with Chimera followed by flexible fitting and rebuilding in Coot.