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Yorodumi- PDB-7mni: Crystal structure of the N-terminal domain of NUP88 in complex wi... -
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-Basic information
Entry | Database: PDB / ID: 7mni | ||||||||||||
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Title | Crystal structure of the N-terminal domain of NUP88 in complex with NUP98 C-terminal Autoproteolytic Domain | ||||||||||||
Components |
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Keywords | TRANSPORT PROTEIN / nuclear pore complex component / nucleocytoplasmic transport | ||||||||||||
Function / homology | Function and homology information transporter activity / nuclear pore organization / nuclear pore outer ring / nuclear pore complex assembly / Nuclear Pore Complex (NPC) Disassembly / nuclear inclusion body / nuclear pore nuclear basket / Transport of Ribonucleoproteins into the Host Nucleus / Regulation of Glucokinase by Glucokinase Regulatory Protein / Defective TPR may confer susceptibility towards thyroid papillary carcinoma (TPC) ...transporter activity / nuclear pore organization / nuclear pore outer ring / nuclear pore complex assembly / Nuclear Pore Complex (NPC) Disassembly / nuclear inclusion body / nuclear pore nuclear basket / Transport of Ribonucleoproteins into the Host Nucleus / Regulation of Glucokinase by Glucokinase Regulatory Protein / Defective TPR may confer susceptibility towards thyroid papillary carcinoma (TPC) / Transport of the SLBP independent Mature mRNA / Transport of the SLBP Dependant Mature mRNA / NS1 Mediated Effects on Host Pathways / SUMOylation of SUMOylation proteins / Transport of Mature mRNA Derived from an Intronless Transcript / structural constituent of nuclear pore / Rev-mediated nuclear export of HIV RNA / SUMOylation of RNA binding proteins / Nuclear import of Rev protein / positive regulation of mRNA splicing, via spliceosome / Transport of Mature mRNA derived from an Intron-Containing Transcript / NEP/NS2 Interacts with the Cellular Export Machinery / tRNA processing in the nucleus / Postmitotic nuclear pore complex (NPC) reformation / nucleocytoplasmic transport / Viral Messenger RNA Synthesis / nuclear localization sequence binding / SUMOylation of ubiquitinylation proteins / Vpr-mediated nuclear import of PICs / SUMOylation of DNA replication proteins / Hydrolases; Acting on peptide bonds (peptidases); Serine endopeptidases / ribosomal large subunit export from nucleus / Regulation of HSF1-mediated heat shock response / mRNA transport / ribosomal small subunit export from nucleus / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / mRNA export from nucleus / SUMOylation of DNA damage response and repair proteins / nuclear pore / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Resolution of Sister Chromatid Cohesion / serine-type peptidase activity / SUMOylation of chromatin organization proteins / nuclear periphery / HCMV Late Events / RHO GTPases Activate Formins / promoter-specific chromatin binding / Transcriptional regulation by small RNAs / ISG15 antiviral mechanism / HCMV Early Events / protein import into nucleus / Separation of Sister Chromatids / nuclear envelope / snRNP Assembly / nuclear membrane / transcription coactivator activity / nuclear body / ribonucleoprotein complex / mRNA binding / SARS-CoV-2 activates/modulates innate and adaptive immune responses / nucleoplasm / cytosol Similarity search - Function | ||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2 Å | ||||||||||||
Authors | Bley, C.J. / Nie, S. / Mobbs, G.W. / Petrovic, S. / Gres, A.T. / Liu, X. / Mukherjee, S. / Harvey, S. / Huber, F.M. / Lin, D.H. ...Bley, C.J. / Nie, S. / Mobbs, G.W. / Petrovic, S. / Gres, A.T. / Liu, X. / Mukherjee, S. / Harvey, S. / Huber, F.M. / Lin, D.H. / Brown, B. / Tang, A.W. / Rundlet, E.J. / Correia, A.R. / Chen, S. / Regmi, S.G. / Stevens, T.A. / Jette, C.A. / Dasso, M. / Patke, A. / Palazzo, A.F. / Kossiakoff, A.A. / Hoelz, A. | ||||||||||||
Funding support | United States, 3items
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Citation | Journal: Science / Year: 2022 Title: Architecture of the cytoplasmic face of the nuclear pore. Authors: Christopher J Bley / Si Nie / George W Mobbs / Stefan Petrovic / Anna T Gres / Xiaoyu Liu / Somnath Mukherjee / Sho Harvey / Ferdinand M Huber / Daniel H Lin / Bonnie Brown / Aaron W Tang / ...Authors: Christopher J Bley / Si Nie / George W Mobbs / Stefan Petrovic / Anna T Gres / Xiaoyu Liu / Somnath Mukherjee / Sho Harvey / Ferdinand M Huber / Daniel H Lin / Bonnie Brown / Aaron W Tang / Emily J Rundlet / Ana R Correia / Shane Chen / Saroj G Regmi / Taylor A Stevens / Claudia A Jette / Mary Dasso / Alina Patke / Alexander F Palazzo / Anthony A Kossiakoff / André Hoelz / Abstract: INTRODUCTION The subcellular compartmentalization of eukaryotic cells requires selective transport of folded proteins and protein-nucleic acid complexes. Embedded in nuclear envelope pores, which are ...INTRODUCTION The subcellular compartmentalization of eukaryotic cells requires selective transport of folded proteins and protein-nucleic acid complexes. Embedded in nuclear envelope pores, which are generated by the circumscribed fusion of the inner and outer nuclear membranes, nuclear pore complexes (NPCs) are the sole bidirectional gateways for nucleocytoplasmic transport. The ~110-MDa human NPC is an ~1000-protein assembly that comprises multiple copies of ~34 different proteins, collectively termed nucleoporins. The symmetric core of the NPC is composed of an inner ring encircling the central transport channel and outer rings formed by Y‑shaped coat nucleoporin complexes (CNCs) anchored atop both sides of the nuclear envelope. The outer rings are decorated with compartment‑specific asymmetric nuclear basket and cytoplasmic filament nucleoporins, which establish transport directionality and provide docking sites for transport factors and the small guanosine triphosphatase Ran. The cytoplasmic filament nucleoporins also play an essential role in the irreversible remodeling of messenger ribonucleoprotein particles (mRNPs) as they exit the central transport channel. Unsurprisingly, the NPC's cytoplasmic face represents a hotspot for disease‑associated mutations and is commonly targeted by viral virulence factors. RATIONALE Previous studies established a near-atomic composite structure of the human NPC's symmetric core by combining (i) biochemical reconstitution to elucidate the interaction network between symmetric nucleoporins, (ii) crystal and single-particle cryo-electron microscopy structure determination of nucleoporins and nucleoporin complexes to reveal their three-dimensional shape and the molecular details of their interactions, (iii) quantitative docking in cryo-electron tomography (cryo-ET) maps of the intact human NPC to uncover nucleoporin stoichiometry and positioning, and (iv) cell‑based assays to validate the physiological relevance of the biochemical and structural findings. In this work, we extended our approach to the cytoplasmic filament nucleoporins to reveal the near-atomic architecture of the cytoplasmic face of the human NPC. RESULTS Using biochemical reconstitution, we elucidated the protein-protein and protein-RNA interaction networks of the human and cytoplasmic filament nucleoporins, establishing an evolutionarily conserved heterohexameric cytoplasmic filament nucleoporin complex (CFNC) held together by a central heterotrimeric coiled‑coil hub that tethers two separate mRNP‑remodeling complexes. Further biochemical analysis and determination of a series of crystal structures revealed that the metazoan‑specific cytoplasmic filament nucleoporin NUP358 is composed of 16 distinct domains, including an N‑terminal S‑shaped α‑helical solenoid followed by a coiled‑coil oligomerization element, numerous Ran‑interacting domains, an E3 ligase domain, and a C‑terminal prolyl‑isomerase domain. Physiologically validated quantitative docking into cryo-ET maps of the intact human NPC revealed that pentameric NUP358 bundles, conjoined by the oligomerization element, are anchored through their N‑terminal domains to the central stalk regions of the CNC, projecting flexibly attached domains as far as ~600 Å into the cytoplasm. Using cell‑based assays, we demonstrated that NUP358 is dispensable for the architectural integrity of the assembled interphase NPC and RNA export but is required for efficient translation. After NUP358 assignment, the remaining 4-shaped cryo‑ET density matched the dimensions of the CFNC coiled‑coil hub, in close proximity to an outer-ring NUP93. Whereas the N-terminal NUP93 assembly sensor motif anchors the properly assembled related coiled‑coil channel nucleoporin heterotrimer to the inner ring, biochemical reconstitution confirmed that the NUP93 assembly sensor is reused in anchoring the CFNC to the cytoplasmic face of the human NPC. By contrast, two CFNCs are anchored by a divergent mechanism that involves assembly sensors located in unstructured portions of two CNC nucleoporins. Whereas unassigned cryo‑ET density occupies the NUP358 and CFNC binding sites on the nuclear face, docking of the nuclear basket component ELYS established that the equivalent position on the cytoplasmic face is unoccupied, suggesting that mechanisms other than steric competition promote asymmetric distribution of nucleoporins. CONCLUSION We have substantially advanced the biochemical and structural characterization of the asymmetric nucleoporins' architecture and attachment at the cytoplasmic and nuclear faces of the NPC. Our near‑atomic composite structure of the human NPC's cytoplasmic face provides a biochemical and structural framework for elucidating the molecular basis of mRNP remodeling, viral virulence factor interference with NPC function, and the underlying mechanisms of nucleoporin diseases at the cytoplasmic face of the NPC. [Figure: see text]. | ||||||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7mni.cif.gz | 669.8 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7mni.ent.gz | 566 KB | Display | PDB format |
PDBx/mmJSON format | 7mni.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/mn/7mni ftp://data.pdbj.org/pub/pdb/validation_reports/mn/7mni | HTTPS FTP |
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-Related structure data
Related structure data | 7mnjC 7mnkC 7mnlC 7mnmC 7mnnC 7mnoC 7mnpC 7mnqC 7mnrC 7mnsC 7mntC 7mnuC 7mnvC 7mnwC 7mnxC 7mnyC 7mnzC 7mo0C 7mo1C 7mo2C 7mo3C 7mo4C 7mo5C 7tblC 7tbmC 1ko6S 5cwwS S: Starting model for refinement C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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Unit cell |
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-Components
#1: Protein | Mass: 54634.992 Da / Num. of mol.: 2 / Fragment: N-terminal domain of NUP88 (UNP residues 1-493) Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: NUP88 / Production host: Escherichia coli (E. coli) / References: UniProt: Q99567 #2: Protein | Mass: 17261.568 Da / Num. of mol.: 2 Fragment: NUP98 C-terminal Autoproteolytic Domain (UNP residues 715-863) Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: NUP98, ADAR2 / Production host: Escherichia coli (E. coli) References: UniProt: P52948-2, Hydrolases; Acting on peptide bonds (peptidases); Serine endopeptidases #3: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 2.08 Å3/Da / Density % sol: 40.93 % |
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Crystal grow | Temperature: 294 K / Method: vapor diffusion, hanging drop / pH: 8.3 Details: 20% w/v PEG4000, 0.22 M sodium chloride, 0.1 M Tris |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N | ||||||||||||||||||||||||||||||
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Diffraction source | Source: SYNCHROTRON / Site: APS / Beamline: 23-ID-B / Wavelength: 1.00003 Å | ||||||||||||||||||||||||||||||
Detector | Type: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Aug 7, 2019 | ||||||||||||||||||||||||||||||
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | ||||||||||||||||||||||||||||||
Radiation wavelength | Wavelength: 1.00003 Å / Relative weight: 1 | ||||||||||||||||||||||||||||||
Reflection | Resolution: 2→20 Å / Num. obs: 76633 / % possible obs: 97.8 % / Redundancy: 6 % / CC1/2: 0.996 / Rmerge(I) obs: 0.131 / Rpim(I) all: 0.056 / Rrim(I) all: 0.143 / Net I/σ(I): 7.5 / Num. measured all: 456229 / Scaling rejects: 251 | ||||||||||||||||||||||||||||||
Reflection shell | Diffraction-ID: 1
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-Processing
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: PDB entries 5CWW & 1KO6 Resolution: 2→20 Å / SU ML: 0.27 / Cross valid method: THROUGHOUT / σ(F): 1.96 / Phase error: 23.23 / Stereochemistry target values: ML
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 191.54 Å2 / Biso mean: 61.7063 Å2 / Biso min: 21.4 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: final / Resolution: 2→20 Å
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LS refinement shell | Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 26
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Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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Refinement TLS group |
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