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-Structure paper
Title | Structure determination by cryoEM at 100 keV. |
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Journal, issue, pages | Proc Natl Acad Sci U S A, Vol. 120, Issue 49, Page e2312905120, Year 2023 |
Publish date | Dec 5, 2023 |
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 / |
PubMed 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. |
External links | Proc Natl Acad Sci U S A / PubMed:38011573 / PubMed Central |
Methods | EM (single particle) |
Resolution | 2.6 - 4.5 Å |
Structure data | EMDB-17958, PDB-8pv9: EMDB-17959, PDB-8pva: EMDB-17960, PDB-8pvb: EMDB-17961, PDB-8pvc: EMDB-17962, PDB-8pvd: EMDB-17963, PDB-8pve: EMDB-17964, PDB-8pvf: EMDB-17965, PDB-8pvg: EMDB-17966, PDB-8pvh: EMDB-17967, PDB-8pvi: EMDB-17968, PDB-8pvj: |
Chemicals | ChemComp-ZN: ChemComp-R16: ChemComp-D10: ChemComp-HSM: ChemComp-CL: ChemComp-V8D: ChemComp-FE: ChemComp-NDP: ChemComp-HEM: ChemComp-NAD: |
Source |
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Keywords | DNA BINDING PROTEIN / RIBOSOME / MEMBRANE PROTEIN / Pentameric ligand-gated ion channel / Neurotrasmitter receptor / GABA(A) receptor / METAL BINDING PROTEIN / Iron storage / OXIDOREDUCTASE / GAPDH / BIOSYNTHETIC PROTEIN / Glutamine synthetase / filament / Oxidoreductase Aldehyde dehydrogenase / HYDROLASE / substrate channeling / bi-functional enzyme / dehydrogenase / TRANSFERASE / LUMAZINE SYNTHASE |