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Showing results 1 to 5 of 5
  • OER000002299.pdf.jpg
  • Journal Article

  • Application of monolayer graphene to cryo-electron microscopy grids for high-resolution structure determination

    • Authors : Grassetti, andrew V (2023)

  • The application of support layers, such as graphene, to cryo-electron microscopy grids can increase the density of particles imaged, limit particle interactions with the air-water interface, reduce the extent of beam-induced motion, and, in some instances, improve the distribution of particle orientations. This paper describes a robust protocol for coating cryo-EM grids with a monolayer of graphene for improved cryo-sample preparation. Single particle cryo...
  • OER000002922.pdf.jpg
  • Journal article

  • Biochemical insight into novel Rab-GEF activity of the mammalian TRAPPIII complex

    • Authors : Harris, Noah J (2021)

  • Transport Protein Particle complexes (TRAPP) are evolutionarily conserved regulators of membrane trafficking, with this mediated by their guanine nucleotide exchange factor (GEF) activity towards Rab GTPases. In metazoans evidence suggests that two different TRAPP complexes exist, TRAPPII and TRAPPIII. These two complexes share a common core of subunits, with complex specific subunits (TRAPPC9 and TRAPPC10 in TRAPPII and TRAPPC8, TRAPPC11, TRAPPC12, TRAP...
  • OER000002685.pdf.jpg
  • Journal article

  • Exchangeable HaloTag Ligands (xHTLs) for multi-modal super-resolution fluorescence microscopy

    • Authors : Bruins, orick (2023)

  • We introduce exchangeable ligands for fluorescence labeling of HaloTag7 as an alternative to covalently bound probes. The exchangeable ligands open up new possibilities in imaging for a widely used labeling approach, including applications in points accumulation for imaging in nanoscale topography (PAINT), MINFLUX and live-cell, multi-frame stimulated emission depletion (STED) microscopy. We furthermore introduce orthogonal pairs of exchangeable ligands and HaloTag...
  • OER000002715.pdf.jpg
  • Journal article

  • “Replication stalling activates SSB for recruitment of DNA damage tolerance factors”

    • Authors : Thrall, Elizabeth S. (2023)

  • Translesion synthesis (TLS) polymerases bypass DNA lesions that block replicative polymerases, allowing cells to tolerate DNA damage encountered during replication. It is well known that most bacterial TLS polymerases must interact with the sliding clamp processivity factor to carry out TLS, but recent work in Escherichia coli has revealed that single-stranded DNA-binding protein (SSB) plays a key role in enriching the TLS polymerase Pol IV at stalled re...
  • OER000002498.pdf.jpg
  • Journal article

  • Structural Insights into the Iron Nitrogenase Complex

    • Authors : Schmidt, Frederik V.  (2023)

  • Nitrogenases are best known for catalysing the reduction of dinitrogen to ammonia at a complex metallic cofactor. Recently, nitrogenases were shown to reduce carbon dioxide (CO2) and carbon monoxide to hydrocarbons, offering a pathway to recycle carbon waste into hydrocarbon products. Among the nitrogenase family the iron nitrogenase is the isozyme with the highest wildtype activity for the reduction of CO2, but the molecular architecture facilitating these&#...