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- PDB-9go5: CryoEM Reconstruction of Yeast ADP-Actin Filament at 2.5 A resolution. -
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Open data
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Basic information
Entry | Database: PDB / ID: 9go5 | ||||||
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Title | CryoEM Reconstruction of Yeast ADP-Actin Filament at 2.5 A resolution. | ||||||
![]() | Actin | ||||||
![]() | PROTEIN FIBRIL / Fibre / polymer / helical protein / motility | ||||||
Function / homology | ![]() RHOB GTPase cycle / RHOA GTPase cycle / cellular bud neck contractile ring / mitotic actomyosin contractile ring contraction / vacuole inheritance / ascospore wall assembly / actin cortical patch / Swr1 complex / Ino80 complex / NuA4 histone acetyltransferase complex ...RHOB GTPase cycle / RHOA GTPase cycle / cellular bud neck contractile ring / mitotic actomyosin contractile ring contraction / vacuole inheritance / ascospore wall assembly / actin cortical patch / Swr1 complex / Ino80 complex / NuA4 histone acetyltransferase complex / establishment of cell polarity / actin filament bundle / protein secretion / actin filament / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / structural constituent of cytoskeleton / endocytosis / actin cytoskeleton / chromatin remodeling / DNA repair / DNA-templated transcription / regulation of DNA-templated transcription / chromatin / ATP hydrolysis activity / ATP binding / identical protein binding / nucleus Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 2.5 Å | ||||||
![]() | Bullough, P.A. / Ayscough, K.R. / Lahiri, I. / Tzokov, S.B. / Stevenson, S.R. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-EM reconstruction of yeast ADP-actin filament at 2.5 Å resolution. A comparison with vertebrate F-actin. Authors: Sarah R Stevenson / Svetomir B Tzokov / Indrajit Lahiri / Kathryn R Ayscough / Per A Bullough / ![]() Abstract: The core component of the actin cytoskeleton is the globular protein G-actin, which reversibly polymerizes into filaments (F-actin). Budding yeast possesses a single actin that shares 87%-89% ...The core component of the actin cytoskeleton is the globular protein G-actin, which reversibly polymerizes into filaments (F-actin). Budding yeast possesses a single actin that shares 87%-89% sequence identity with vertebrate actin isoforms. Previous structural studies indicate very close overlap of main-chain backbones. Intriguingly, however, substitution of yeast ACT1 with vertebrate β-cytoplasmic actin severely disrupts cell function and the substitution with a skeletal muscle isoform is lethal. Here we report a 2.5 Å structure of budding yeast F-actin. Previously unresolved side-chain information allows us to highlight four main differences in the comparison of yeast and vertebrate ADP F-actins: a more open nucleotide binding pocket; a more solvent exposed C-terminus; a rearrangement of inter-subunit binding interactions in the vicinity of the D loop and changes in the hydrogen bonding network in the vicinity of histidine 73 (yeast actin) and methyl-histidine 73 (vertebrate actin). | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 366.9 KB | Display | ![]() |
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PDB format | ![]() | 299.1 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 1.5 MB | Display | ![]() |
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Full document | ![]() | 1.7 MB | Display | |
Data in XML | ![]() | 59.5 KB | Display | |
Data in CIF | ![]() | 83.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 51491MC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 41735.547 Da / Num. of mol.: 5 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: ACT1, ABY1, END7, YFL039C / Production host: ![]() References: UniProt: P60010, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement #2: Chemical | ChemComp-ADP / #3: Chemical | ChemComp-MG / #4: Water | ChemComp-HOH / | Has ligand of interest | Y | Has protein modification | N | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: HELICAL ARRAY / 3D reconstruction method: helical reconstruction |
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Sample preparation
Component | Name: Polymer of actin subunits / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 8 / Details: 50 mM KCl, 1 mM MgCl2, 1 mM EGTA, 10 mM Tris |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R2/2 |
Vitrification | Instrument: LEICA EM GP / Cryogen name: ETHANE |
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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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2400 nm / Nominal defocus min: 500 nm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 27 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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Helical symmerty | Angular rotation/subunit: -167.2 ° / Axial rise/subunit: 2.76 Å / Axial symmetry: C1 |
3D reconstruction | Resolution: 2.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 1368572 / Symmetry type: HELICAL |
Atomic model building | Method: real space / Protocol: AB INITIO MODEL / Space: REAL |