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Yorodumi- PDB-6cri: Structure of the cargo bound AP-1:Arf1:tetherin-Nef stable closed... -
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-Basic information
Entry | Database: PDB / ID: 6cri | ||||||
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Title | Structure of the cargo bound AP-1:Arf1:tetherin-Nef stable closed trimer | ||||||
Components |
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Keywords | VIRAL PROTEIN / PROTEIN TRANSPORT / AP / HIV / Nef / trafficking | ||||||
Function / homology | Function and homology information negative regulation of plasmacytoid dendritic cell cytokine production / negative regulation of intracellular transport of viral material / response to interferon-beta / basolateral protein secretion / negative regulation of CD4 production / perturbation by virus of host immune response / mitotic cleavage furrow ingression / endosome to melanosome transport / trans-Golgi Network Vesicle Budding / AP-1 adaptor complex ...negative regulation of plasmacytoid dendritic cell cytokine production / negative regulation of intracellular transport of viral material / response to interferon-beta / basolateral protein secretion / negative regulation of CD4 production / perturbation by virus of host immune response / mitotic cleavage furrow ingression / endosome to melanosome transport / trans-Golgi Network Vesicle Budding / AP-1 adaptor complex / Lysosome Vesicle Biogenesis / protein trimerization / platelet dense granule organization / Glycosphingolipid transport / response to interferon-alpha / regulation of receptor internalization / melanosome assembly / metalloendopeptidase inhibitor activity / Intra-Golgi traffic / symbiont-mediated suppression of host antigen processing and presentation of peptide antigen via MHC class I / regulation of Arp2/3 complex-mediated actin nucleation / Golgi to vacuole transport / symbiont-mediated suppression of host antigen processing and presentation of peptide antigen via MHC class II / Synthesis of PIPs at the Golgi membrane / Golgi Associated Vesicle Biogenesis / symbiont-mediated suppression of host apoptosis / clathrin adaptor activity / suppression by virus of host autophagy / MHC class II antigen presentation / positive regulation of leukocyte proliferation / CD4 receptor binding / Nef Mediated CD4 Down-regulation / thioesterase binding / dendritic spine organization / determination of left/right symmetry / long-term synaptic depression / clathrin-coated vesicle / COPI-dependent Golgi-to-ER retrograde traffic / azurophil granule membrane / Lysosome Vesicle Biogenesis / negative regulation of viral genome replication / clathrin binding / Golgi Associated Vesicle Biogenesis / cell leading edge / MHC class I protein binding / response to type II interferon / B cell activation / Synthesis of PIPs at the plasma membrane / host cell Golgi membrane / intracellular copper ion homeostasis / protein targeting / COPI-mediated anterograde transport / side of membrane / clathrin-coated pit / vesicle-mediated transport / regulation of calcium-mediated signaling / viral life cycle / MHC class II antigen presentation / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / multivesicular body / Neutrophil degranulation / sarcomere / small monomeric GTPase / kidney development / trans-Golgi network membrane / negative regulation of cell migration / Nef mediated downregulation of MHC class I complex cell surface expression / regulation of actin cytoskeleton organization / intracellular protein transport / virion component / trans-Golgi network / response to virus / cytoplasmic vesicle membrane / negative regulation of cell growth / cellular response to virus / SH3 domain binding / SARS-CoV-1 activates/modulates innate immune responses / Interferon alpha/beta signaling / heart development / presynapse / ATPase binding / defense response to virus / positive regulation of canonical NF-kappaB signal transduction / postsynaptic density / early endosome / neuron projection / membrane raft / apical plasma membrane / protein domain specific binding / lysosomal membrane / Golgi membrane / intracellular membrane-bounded organelle / innate immune response / signaling receptor binding / focal adhesion / GTPase activity / Neutrophil degranulation / synapse / GTP binding / apoptotic process Similarity search - Function | ||||||
Biological species | Homo sapiens (human) Human immunodeficiency virus 1 Mus musculus (house mouse) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 6.8 Å | ||||||
Authors | Morris, K.L. / Buffalo, C.Z. / Hurley, J.H. | ||||||
Funding support | United States, 1items
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Citation | Journal: Cell / Year: 2018 Title: HIV-1 Nefs Are Cargo-Sensitive AP-1 Trimerization Switches in Tetherin Downregulation. Authors: Kyle L Morris / Cosmo Z Buffalo / Christina M Stürzel / Elena Heusinger / Frank Kirchhoff / Xuefeng Ren / James H Hurley / Abstract: The HIV accessory protein Nef counteracts immune defenses by subverting coated vesicle pathways. The 3.7 Å cryo-EM structure of a closed trimer of the clathrin adaptor AP-1, the small GTPase Arf1, ...The HIV accessory protein Nef counteracts immune defenses by subverting coated vesicle pathways. The 3.7 Å cryo-EM structure of a closed trimer of the clathrin adaptor AP-1, the small GTPase Arf1, HIV-1 Nef, and the cytosolic tail of the restriction factor tetherin suggested a mechanism for inactivating tetherin by Golgi retention. The 4.3 Å structure of a mutant Nef-induced dimer of AP-1 showed how the closed trimer is regulated by the dileucine loop of Nef. HDX-MS and mutational analysis were used to show how cargo dynamics leads to alternative Arf1 trimerization, directing Nef targets to be either retained at the trans-Golgi or sorted to lysosomes. Phosphorylation of the NL4-3 M-Nef was shown to regulate AP-1 trimerization, explaining how O-Nefs lacking this phosphosite counteract tetherin but most M-Nefs do not. These observations show how the higher-order organization of a vesicular coat can be allosterically modulated to direct cargoes to distinct fates. | ||||||
History |
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-Structure visualization
Movie |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6cri.cif.gz | 1.1 MB | Display | PDBx/mmCIF format |
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PDB format | pdb6cri.ent.gz | 953.9 KB | Display | PDB format |
PDBx/mmJSON format | 6cri.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6cri_validation.pdf.gz | 1.2 MB | Display | wwPDB validaton report |
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Full document | 6cri_full_validation.pdf.gz | 1.2 MB | Display | |
Data in XML | 6cri_validation.xml.gz | 155.8 KB | Display | |
Data in CIF | 6cri_validation.cif.gz | 244.6 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/cr/6cri ftp://data.pdbj.org/pub/pdb/validation_reports/cr/6cri | HTTPS FTP |
-Related structure data
Related structure data | 7563MC 7453C 7454C 7455C 7456C 7457C 7458C 6cm9C 6d83C 6d84C 6dffC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Protein , 2 types, 12 molecules TNcYdZCHKULV
#1: Protein | Mass: 29964.326 Da / Num. of mol.: 6 Fragment: Tetherin UNP residues 2-26, Nef UNP residues 1-206 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human), (gene. exp.) Human immunodeficiency virus 1 Gene: BST2, nef / Production host: Escherichia coli (E. coli) / References: UniProt: Q10589, UniProt: Q90VU7 #3: Protein | Mass: 18936.600 Da / Num. of mol.: 6 / Mutation: Q71L Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ARF1 / Production host: Escherichia coli (E. coli) / References: UniProt: P84077 |
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-AP-1 complex subunit ... , 4 types, 12 molecules BIJGQRMWXSab
#2: Protein | Mass: 64458.656 Da / Num. of mol.: 3 / Mutation: K359R, E476K Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: AP1B1, ADTB1, BAM22, CLAPB2 / Production host: Escherichia coli (E. coli) / References: UniProt: Q10567 #4: Protein | Mass: 66401.055 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mus musculus (house mouse) / Gene: Ap1g1, Adtg, Clapg1 / Production host: Escherichia coli (E. coli) / References: UniProt: P22892 #5: Protein | Mass: 48475.535 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mus musculus (house mouse) / Gene: Ap1m1, Cltnm / Production host: Escherichia coli (E. coli) / References: UniProt: P35585 #6: Protein | Mass: 16998.850 Da / Num. of mol.: 3 / Mutation: C148S Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: AP1S3 / Production host: Escherichia coli (E. coli) / References: UniProt: Q96PC3 |
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-Non-polymers , 2 types, 12 molecules
#7: Chemical | ChemComp-GTP / #8: Chemical | ChemComp-MG / |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Structure of the cargo bound AP-1:Arf1:tetherin-Nef stable closed trimer Type: COMPLEX / Entity ID: #1-#6 / Source: RECOMBINANT |
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Molecular weight | Value: 0.70 MDa / Experimental value: NO |
Source (natural) | Organism: Homo sapiens (human) |
Source (recombinant) | Organism: Escherichia coli (E. coli) |
Buffer solution | pH: 8 Details: 20 mM Tris at pH 8.0, 200 mM NaCl, 5 mM MgCl2, and 0.5 mM TCEP |
Specimen | Conc.: 0.07 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: unspecified |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 296 K |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 62.4 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
Software | Name: PHENIX / Version: 1.13_2998: / Classification: refinement | ||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 6.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 11108 / Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | B value: 425 / Protocol: FLEXIBLE FIT / Space: REAL / Target criteria: Correlation coefficient | ||||||||||||||||||||||||
Refine LS restraints |
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