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Open data
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Basic information
| Entry | Database: PDB / ID: 8pvi | |||||||||||||||||||||
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| Title | Structure of PaaZ determined by cryoEM at 100 keV | |||||||||||||||||||||
Components | Bifunctional protein PaaZ | |||||||||||||||||||||
Keywords | HYDROLASE / substrate channeling / bi-functional enzyme / dehydrogenase | |||||||||||||||||||||
| Function / homology | Function and homology information3-oxo-5,6-dehydrosuberyl-CoA semialdehyde dehydrogenase / oxepin-CoA hydrolase / ether hydrolase activity / hydrolase activity, acting on acid carbon-carbon bonds, in ketonic substances / oxidoreductase activity, acting on CH or CH2 groups, NAD or NADP as acceptor / phenylacetate catabolic process / oxidoreductase activity, acting on the aldehyde or oxo group of donors, NAD or NADP as acceptor / enoyl-CoA hydratase activity / identical protein binding Similarity search - Function | |||||||||||||||||||||
| Biological species | ![]() | |||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å | |||||||||||||||||||||
Authors | McMullan, G. / Naydenova, K. / Mihaylov, D. / Peet, M.J. / Wilson, H. / Yamashita, K. / Dickerson, J.L. / Chen, S. / Cannone, G. / Lee, Y. ...McMullan, G. / Naydenova, K. / Mihaylov, D. / Peet, M.J. / Wilson, H. / Yamashita, K. / Dickerson, J.L. / Chen, S. / Cannone, G. / Lee, Y. / Hutchings, K.A. / Gittins, O. / Sobhy, M. / Wells, T. / El-Gomati, M.M. / Dalby, J. / Meffert, M. / Schulze-Briese, C. / Henderson, R. / Russo, C.J. | |||||||||||||||||||||
| Funding support | United Kingdom, 6items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2023Title: Structure determination by cryoEM at 100 keV. Authors: Greg McMullan / Katerina Naydenova / Daniel Mihaylov / Keitaro Yamashita / Mathew J Peet / Hugh Wilson / Joshua L Dickerson / Shaoxia Chen / Giuseppe Cannone / Yang Lee / Katherine A ...Authors: Greg McMullan / Katerina Naydenova / Daniel Mihaylov / Keitaro Yamashita / Mathew J Peet / Hugh Wilson / Joshua L Dickerson / Shaoxia Chen / Giuseppe Cannone / Yang Lee / Katherine A Hutchings / Olivia Gittins / Mohamed A Sobhy / Torquil Wells / Mohamed M El-Gomati / Jason Dalby / Matthias Meffert / Clemens Schulze-Briese / Richard Henderson / Christopher J Russo / ![]() Abstract: Electron cryomicroscopy can, in principle, determine the structures of most biological molecules but is currently limited by access, specimen preparation difficulties, and cost. We describe a purpose- ...Electron cryomicroscopy can, in principle, determine the structures of most biological molecules but is currently limited by access, specimen preparation difficulties, and cost. We describe a purpose-built instrument operating at 100 keV-including advances in electron optics, detection, and processing-that makes structure determination fast and simple at a fraction of current costs. The instrument attains its theoretical performance limits, allowing atomic resolution imaging of gold test specimens and biological molecular structure determination in hours. We demonstrate its capabilities by determining the structures of eleven different specimens, ranging in size from 140 kDa to 2 MDa, using a fraction of the data normally required. CryoEM with a microscope designed specifically for high-efficiency, on-the-spot imaging of biological molecules will expand structural biology to a wide range of previously intractable problems. | |||||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8pvi.cif.gz | 172.2 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8pvi.ent.gz | 106.2 KB | Display | PDB format |
| PDBx/mmJSON format | 8pvi.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8pvi_validation.pdf.gz | 1.2 MB | Display | wwPDB validaton report |
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| Full document | 8pvi_full_validation.pdf.gz | 1.2 MB | Display | |
| Data in XML | 8pvi_validation.xml.gz | 35.9 KB | Display | |
| Data in CIF | 8pvi_validation.cif.gz | 51.8 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/pv/8pvi ftp://data.pdbj.org/pub/pdb/validation_reports/pv/8pvi | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 17967MC ![]() 8pv9C ![]() 8pvaC ![]() 8pvbC ![]() 8pvcC ![]() 8pvdC ![]() 8pveC ![]() 8pvfC ![]() 8pvgC ![]() 8pvhC ![]() 8pvjC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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| 1 | x 6![]()
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| Noncrystallographic symmetry (NCS) | NCS oper:
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Components
| #1: Protein | Mass: 73969.391 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P77455, oxepin-CoA hydrolase, 3-oxo-5,6-dehydrosuberyl-CoA semialdehyde dehydrogenase |
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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: Phenylacetic acid enzyme Z (PaaZ) from E. coli / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: ![]() |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.4 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: COPPER / Grid type: Quantifoil R1.2/1.3 |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Microscopy | Model: JEOL 1400/HR + YPS FEG |
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| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 100 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 500 nm |
| Specimen holder | Cryogen: NITROGEN Specimen holder model: GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER |
| Image recording | Electron dose: 80 e/Å2 / Film or detector model: DECTRIS SINGLA (1k x 1k) |
| Image scans | Sampling size: 75 µm / Width: 1030 / Height: 1066 |
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Processing
| EM software | Name: Servalcat / Version: 0.4.27 / Category: model refinement |
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
| Symmetry | Point symmetry: D3 (2x3 fold dihedral) |
| 3D reconstruction | Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 23716 / Symmetry type: POINT |
| Atomic model building | Space: RECIPROCAL |
| Atomic model building | PDB-ID: 6jql Accession code: 6jql / Source name: PDB / Type: experimental model |
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About Yorodumi






United Kingdom, 6items
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FIELD EMISSION GUN
