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Open data
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Basic information
Entry | Database: PDB / ID: 3iyv | ||||||
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Title | Clathrin D6 coat as full-length Triskelions | ||||||
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![]() | Endocytosis/exocytosis / CLATHRIN / ALPHA-ZIG-ZAG / BETA-PROPELLER / ENDOCYTOSIS-EXOCYTOSIS COMPLEX | ||||||
Function / homology | ![]() postsynaptic endocytic zone cytoplasmic component / Retrograde neurotrophin signalling / Recycling pathway of L1 / WNT5A-dependent internalization of FZD4 / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / LDL clearance / Gap junction degradation / Formation of annular gap junctions / Golgi Associated Vesicle Biogenesis / clathrin vesicle coat ...postsynaptic endocytic zone cytoplasmic component / Retrograde neurotrophin signalling / Recycling pathway of L1 / WNT5A-dependent internalization of FZD4 / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / LDL clearance / Gap junction degradation / Formation of annular gap junctions / Golgi Associated Vesicle Biogenesis / clathrin vesicle coat / RHOU GTPase cycle / RHOV GTPase cycle / clathrin coat of trans-Golgi network vesicle / Lysosome Vesicle Biogenesis / clathrin complex / negative regulation of hyaluronan biosynthetic process / clathrin light chain binding / MHC class II antigen presentation / VLDLR internalisation and degradation / clathrin coat of coated pit / clathrin heavy chain binding / clathrin coat assembly / Cargo recognition for clathrin-mediated endocytosis / clathrin coat disassembly / clathrin-coated endocytic vesicle / membrane coat / Clathrin-mediated endocytosis / clathrin-dependent endocytosis / arrestin family protein binding / receptor-mediated endocytosis / intracellular protein transport / autophagy / spindle / synaptic vesicle membrane / disordered domain specific binding / melanosome / mitotic cell cycle / protein domain specific binding / cell division / structural molecule activity / mitochondrion / identical protein binding / plasma membrane Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 7.9 Å | ||||||
![]() | Johnson, G.T. / Fotin, A. / Cheng, Y. / Sliz, P. / Grigorieff, N. / Harrison, S.C. / Kirchhausen, T. / Walz, T. | ||||||
![]() | ![]() Title: Molecular model for a complete clathrin lattice from electron cryomicroscopy. Authors: Alexander Fotin / Yifan Cheng / Piotr Sliz / Nikolaus Grigorieff / Stephen C Harrison / Tomas Kirchhausen / Thomas Walz / ![]() Abstract: Clathrin-coated vesicles are important vehicles of membrane traffic in cells. We report the structure of a clathrin lattice at subnanometre resolution, obtained from electron cryomicroscopy of coats ...Clathrin-coated vesicles are important vehicles of membrane traffic in cells. We report the structure of a clathrin lattice at subnanometre resolution, obtained from electron cryomicroscopy of coats assembled in vitro. We trace most of the 1,675-residue clathrin heavy chain by fitting known crystal structures of two segments, and homology models of the rest, into the electron microscopy density map. We also define the position of the central helical segment of the light chain. A helical tripod, the carboxy-terminal parts of three heavy chains, projects inward from the vertex of each three-legged clathrin triskelion, linking that vertex to 'ankles' of triskelions centred two vertices away. Analysis of coats with distinct diameters shows an invariant pattern of contacts in the neighbourhood of each vertex, with more variable interactions along the extended parts of the triskelion 'legs'. These invariant local interactions appear to stabilize the lattice, allowing assembly and uncoating to be controlled by events at a few specific sites. #1: ![]() Title: Structure of an auxilin-bound clathrin coat and its implications for the mechanism of uncoating. Authors: Alexander Fotin / Yifan Cheng / Nikolaus Grigorieff / Thomas Walz / Stephen C Harrison / Tomas Kirchhausen / ![]() Abstract: Clathrin-coated pits invaginate from specific membrane compartments and pinch off as coated vesicles. These vesicles then uncoat rapidly once released. The Hsc70 molecular chaperone effects the ...Clathrin-coated pits invaginate from specific membrane compartments and pinch off as coated vesicles. These vesicles then uncoat rapidly once released. The Hsc70 molecular chaperone effects the uncoating reaction, and is guided to appropriate locations on clathrin lattices by the J-domain-containing co-chaperone molecule auxilin. This raises the question of how a local event such as ATP hydrolysis by Hsc70 can catalyse a global disassembly. Here, we have used electron cryomicroscopy to determine 12-A-resolution structures of in-vitro-assembled clathrin coats in association with a carboxy-terminal fragment of auxilin that contains both the clathrin-binding region and the J domain. We have located the auxilin fragment by computing differences between these structures and those lacking auxilin (described in an accompanying paper). Auxilin binds within the clathrin lattice near contacts between an inward-projecting C-terminal helical tripod and the crossing of two 'ankle' segments; it also contacts the terminal domain of yet another clathrin 'leg'. It therefore recruits Hsc70 to the neighbourhood of a set of critical interactions. Auxilin binding produces a local change in heavy-chain contacts, creating a detectable global distortion of the clathrin coat. We propose a mechanism by which local destabilization of the lattice promotes general uncoating. | ||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 459.4 KB | Display | ![]() |
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PDB format | ![]() | 278.7 KB | Display | ![]() |
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-Validation report
Summary document | ![]() | 1022 KB | Display | ![]() |
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Full document | ![]() | 1 MB | Display | |
Data in XML | ![]() | 161.2 KB | Display | |
Data in CIF | ![]() | 245.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 5119MC ![]() 1xi4C M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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1 | ![]()
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3 | ![]()
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Symmetry | Point symmetry: (Schoenflies symbol: D6 (2x6 fold dihedral)) |
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Components
#1: Antibody | Mass: 187145.125 Da / Num. of mol.: 9 / Fragment: UNP residues 1-1630 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #2: Protein | Mass: 8539.323 Da / Num. of mol.: 9 / Fragment: UNP residues 95-164 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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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 |
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Sample preparation
Component | Name: CLATHRIN D6 COATS / Type: COMPLEX / Details: COATS ASSEMBLED WITH AP-2 WITH OR WITHOUT LIGHT |
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Buffer solution | Name: 25MM MES / pH: 6.5 / Details: 25MM MES |
Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: HOLEY CARBON |
Vitrification | Instrument: FEI VITROBOT MARK I / Cryogen name: ETHANE / Details: VITRIFIED |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Tecnai F20 / Image courtesy: FEI Company |
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Microscopy | Model: FEI TECNAI F20 / Details: LOW DOSE |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 50000 X / Calibrated magnification: 51160 X / Nominal defocus max: 5000 nm / Nominal defocus min: 2000 nm / Cs: 2 mm |
Specimen holder | Temperature: 93 K / Tilt angle max: 0 ° / Tilt angle min: 0 ° |
Image recording | Electron dose: 20 e/Å2 / Film or detector model: KODAK SO-163 FILM |
Image scans | Num. digital images: 225 |
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Processing
EM software |
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CTF correction | Details: CTFTILT, FREALIGN V.6.07 | |||||||||||||||||||||
Symmetry | Point symmetry: D6 (2x6 fold dihedral) | |||||||||||||||||||||
3D reconstruction | Method: FOURIER SPACE RECONSTRUCTION / Resolution: 7.9 Å / Num. of particles: 1450 / Actual pixel size: 2.8 Å Details: THE COORDINATES CONTAIN ONLY A CA TRACE. PLEASE SEE PAPER(NATURE PAPER REFERENCE) FOR FURTHER DETAILS. Symmetry type: POINT | |||||||||||||||||||||
Atomic model building | Protocol: OTHER / Space: REAL / Target criteria: DENSITY CORRELATION / Details: METHOD--VISUAL REFINEMENT PROTOCOL--MAVE | |||||||||||||||||||||
Atomic model building |
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Refinement | Highest resolution: 7.9 Å | |||||||||||||||||||||
Refinement step | Cycle: LAST / Highest resolution: 7.9 Å
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