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Open data
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Basic information
Entry | Database: PDB / ID: 8atd | ||||||||||||||||||
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Title | Wild type hexamer oxalyl-CoA synthetase (OCS) | ||||||||||||||||||
![]() | Oxalate--CoA ligase | ||||||||||||||||||
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Function / homology | ![]() ![]() ![]() ![]() ![]() ![]() Similarity search - Function | ||||||||||||||||||
Biological species | ![]() ![]() ![]() | ||||||||||||||||||
Method | ![]() ![]() ![]() | ||||||||||||||||||
![]() | Lill, P. / Burgi, J. / Raunser, S. / Wilmanns, M. / Gatsogiannis, C. | ||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Asymmetric horseshoe-like assembly of peroxisomal yeast oxalyl-CoA synthetase. Authors: Jérôme Bürgi / Pascal Lill / Evdokia-Anastasia Giannopoulou / Cy M Jeffries / Grzegorz Chojnowski / Stefan Raunser / Christos Gatsogiannis / Matthias Wilmanns / ![]() Abstract: Oxalyl-CoA synthetase from is one of the most abundant peroxisomal proteins in yeast and hence has become a model to study peroxisomal translocation. It contains a C-terminal Peroxisome Targeting ...Oxalyl-CoA synthetase from is one of the most abundant peroxisomal proteins in yeast and hence has become a model to study peroxisomal translocation. It contains a C-terminal Peroxisome Targeting Signal 1, which however is partly dispensable, suggesting additional receptor bindings sites. To unravel any additional features that may contribute to its capacity to be recognized as peroxisomal target, we determined its assembly and overall architecture by an integrated structural biology approach, including X-ray crystallography, single particle cryo-electron microscopy and small angle X-ray scattering. Surprisingly, it assembles into mixture of concentration-dependent dimers, tetramers and hexamers by dimer self-association. Hexameric particles form an unprecedented asymmetric horseshoe-like arrangement, which considerably differs from symmetric hexameric assembly found in many other protein structures. A single mutation within the self-association interface is sufficient to abolish any higher-level oligomerization, resulting in a homogenous dimeric assembly. The small C-terminal domain of yeast Oxalyl-CoA synthetase is connected by a partly flexible hinge with the large N-terminal domain, which provides the sole basis for oligomeric assembly. Our data provide a basis to mechanistically study peroxisomal translocation of this target. | ||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 590.8 KB | Display | ![]() |
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PDB format | ![]() | 392.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 15646MC ![]() 8affC ![]() 8afgC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
Other databases |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
#1: Protein | Mass: 48135.832 Da / Num. of mol.: 6 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() Strain: ATCC 204508 / S288c / Gene: PCS60, AAE3, FAT2, YBR222C, YBR1512 / Production host: ![]() ![]() ![]() ![]() |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: ![]() |
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Sample preparation
Component | Name: Hexameric complex of the oxalyl-CoA synthetase Pcs60p / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT | ||||||||||||||||||||
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Molecular weight | Value: 0.36 MDa / Experimental value: YES | ||||||||||||||||||||
Source (natural) | Organism: ![]() ![]() ![]() | ||||||||||||||||||||
Source (recombinant) | Organism: ![]() ![]() ![]() | ||||||||||||||||||||
Buffer solution | pH: 7.5 | ||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 0.3 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied![]() ![]() | ||||||||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil | ||||||||||||||||||||
Vitrification![]() | Instrument: GATAN CRYOPLUNGE 3 / Cryogen name: ETHANE / Humidity: 90 % / Chamber temperature: 298.15 K Details: 90% humidity in the sample chamber. Gentle Blot function, 2.5 seconds |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: TFS KRIOS |
Electron gun | Electron source![]() ![]() |
Electron lens | Mode: BRIGHT FIELD![]() ![]() |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 63 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Num. of grids imaged: 4 / Num. of real images: 5594 |
EM imaging optics | Energyfilter name![]() |
Image scans | Movie frames/image: 60 / Used frames/image: 2-60 |
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Processing
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EM software |
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CTF correction![]() | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 4000000 / Details: Picking was performed using cryOLO | ||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry![]() ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction![]() | Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 819000 / Algorithm: FOURIER SPACE / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 8AFF | ||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 57.37 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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