GATOR2 complex / nephron development / Seh1-associated complex / protein exit from endoplasmic reticulum / COPII-coated vesicle budding / protein localization to nuclear inner membrane / nuclear pore inner ring / nuclear envelope organization / transcription-dependent tethering of RNA polymerase II gene DNA at nuclear periphery / COPII-coated vesicle cargo loading ...GATOR2 complex / nephron development / Seh1-associated complex / protein exit from endoplasmic reticulum / COPII-coated vesicle budding / protein localization to nuclear inner membrane / nuclear pore inner ring / nuclear envelope organization / transcription-dependent tethering of RNA polymerase II gene DNA at nuclear periphery / COPII-coated vesicle cargo loading / nuclear pore outer ring / nuclear pore complex assembly / telomere tethering at nuclear periphery / nuclear pore organization / atrial cardiac muscle cell action potential / somite development / COPII vesicle coat / nuclear pore cytoplasmic filaments / post-transcriptional tethering of RNA polymerase II gene DNA at nuclear periphery / paraxial mesoderm development / Nuclear Pore Complex (NPC) Disassembly / nuclear inclusion body / Amino acids regulate mTORC1 / Transport of Ribonucleoproteins into the Host Nucleus / nuclear pore nuclear basket / Regulation of Glucokinase by Glucokinase Regulatory Protein / Defective TPR may confer susceptibility towards thyroid papillary carcinoma (TPC) / miRNA processing / attachment of mitotic spindle microtubules to kinetochore / Transport of the SLBP independent Mature mRNA / Transport of the SLBP Dependant Mature mRNA / NS1 Mediated Effects on Host Pathways / SUMOylation of SUMOylation proteins / protein-containing complex localization / Transport of Mature mRNA Derived from an Intronless Transcript / structural constituent of nuclear pore / nuclear localization sequence binding / positive regulation of mRNA splicing, via spliceosome / Rev-mediated nuclear export of HIV RNA / Nuclear import of Rev protein / SUMOylation of RNA binding proteins / NEP/NS2 Interacts with the Cellular Export Machinery / Transport of Mature mRNA derived from an Intron-Containing Transcript / tRNA processing in the nucleus / RNA export from nucleus / Postmitotic nuclear pore complex (NPC) reformation / COPII-mediated vesicle transport / lamellipodium assembly / neural tube development / nucleocytoplasmic transport / Viral Messenger RNA Synthesis / poly(A)+ mRNA export from nucleus / mitotic metaphase chromosome alignment / SUMOylation of ubiquitinylation proteins / female gonad development / Vpr-mediated nuclear import of PICs / macrophage chemotaxis / SUMOylation of DNA replication proteins / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素; セリンエンドペプチターゼ / positive regulation of TOR signaling / Regulation of HSF1-mediated heat shock response / mRNA transport / cellular response to nutrient levels / nuclear pore / mRNA export from nucleus / SUMOylation of DNA damage response and repair proteins / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / negative regulation of TORC1 signaling / neurogenesis / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / positive regulation of TORC1 signaling / serine-type peptidase activity / MHC class II antigen presentation / Resolution of Sister Chromatid Cohesion / cellular response to amino acid starvation / nuclear periphery / SUMOylation of chromatin organization proteins / HCMV Late Events / chromosome segregation / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / intracellular protein transport / Transcriptional regulation by small RNAs / promoter-specific chromatin binding / RHO GTPases Activate Formins / ER to Golgi transport vesicle membrane / molecular condensate scaffold activity / kinetochore / ISG15 antiviral mechanism / spindle / HCMV Early Events / protein import into nucleus / Separation of Sister Chromatids / nuclear envelope / protein transport / actin cytoskeleton / snRNP Assembly / nuclear membrane / transcription coactivator activity / defense response to Gram-positive bacterium 類似検索 - 分子機能
ジャーナル: Nature / 年: 2015 タイトル: In situ structural analysis of the human nuclear pore complex. 著者: Alexander von Appen / Jan Kosinski / Lenore Sparks / Alessandro Ori / Amanda L DiGuilio / Benjamin Vollmer / Marie-Therese Mackmull / Niccolo Banterle / Luca Parca / Panagiotis Kastritis / ...著者: Alexander von Appen / Jan Kosinski / Lenore Sparks / Alessandro Ori / Amanda L DiGuilio / Benjamin Vollmer / Marie-Therese Mackmull / Niccolo Banterle / Luca Parca / Panagiotis Kastritis / Katarzyna Buczak / Shyamal Mosalaganti / Wim Hagen / Amparo Andres-Pons / Edward A Lemke / Peer Bork / Wolfram Antonin / Joseph S Glavy / Khanh Huy Bui / Martin Beck / 要旨: Nuclear pore complexes are fundamental components of all eukaryotic cells that mediate nucleocytoplasmic exchange. Determining their 110-megadalton structure imposes a formidable challenge and ...Nuclear pore complexes are fundamental components of all eukaryotic cells that mediate nucleocytoplasmic exchange. Determining their 110-megadalton structure imposes a formidable challenge and requires in situ structural biology approaches. Of approximately 30 nucleoporins (Nups), 15 are structured and form the Y and inner-ring complexes. These two major scaffolding modules assemble in multiple copies into an eight-fold rotationally symmetric structure that fuses the inner and outer nuclear membranes to form a central channel of ~60 nm in diameter. The scaffold is decorated with transport-channel Nups that often contain phenylalanine-repeat sequences and mediate the interaction with cargo complexes. Although the architectural arrangement of parts of the Y complex has been elucidated, it is unclear how exactly it oligomerizes in situ. Here we combine cryo-electron tomography with mass spectrometry, biochemical analysis, perturbation experiments and structural modelling to generate, to our knowledge, the most comprehensive architectural model of the human nuclear pore complex to date. Our data suggest previously unknown protein interfaces across Y complexes and to inner-ring complex members. We show that the transport-channel Nup358 (also known as Ranbp2) has a previously unanticipated role in Y-complex oligomerization. Our findings blur the established boundaries between scaffold and transport-channel Nups. We conclude that, similar to coated vesicles, several copies of the same structural building block--although compositionally identical--engage in different local sets of interactions and conformations.