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Showing 1–9 of 9 results
Advanced filters: Author: Johannes Hohlbein Clear advanced filters
  • A DNA-binding protein, DnaA, regulates the initiation of chromosomal replication in bacteria. Here, Olivi et al. show that the bacterial chromosome sequesters DnaA in a growth rate-dependent manner, suggesting a role for titration in the coordination of DNA replication.

    • Lorenzo Olivi
    • Stephan Köstlbacher
    • Raymond H. J. Staals
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-18
  • The fidelity of DNA polymerases depends on conformational changes that promote the rejection of incorrect nucleotides. Here, by using an intramolecular single-molecule FRET assay, the authors establish and characterize the partially closed conformation as a crucial fidelity checkpoint.

    • Johannes Hohlbein
    • Louise Aigrain
    • Achillefs N. Kapanidis
    ResearchOpen Access
    Nature Communications
    Volume: 4, P: 1-11
  • Single-particle tracking PALM (sptPALM) provides quantitative information in vivo if the protein of interest remains in a single diffusional state during track acquisition. Here the authors develop a custom-built sptPALM microscope and a Monte-Carlo based diffusion distribution analysis to study dynamic DNA-dCas9 interactions in live bacteria.

    • Koen J. A. Martens
    • Sam P. B. van Beljouw
    • Johannes Hohlbein
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-11
  • Light microscopy enables researchers to observe cellular mechanisms with high spatial and temporal resolution. However, the increasing complexity of current imaging technologies, coupled with financial constraints of potential users, hampers the general accessibility and potential reach of cutting-edge microscopy. Open microscopy can address this issue by making well-designed and well-documented hardware and software solutions openly available to a broad audience. In this Comment, we provide a definition of open microscopy and present recent projects in the field. We discuss current and future challenges of open microscopy and their implications for funders, policymakers, researchers and scientists. We believe that open microscopy requires a holistic approach. Sample preparation, designing and building of hardware components, writing software, data acquisition and data interpretation must go hand in hand to enable interdisciplinary and reproducible science to the benefit of society.

    • Johannes Hohlbein
    • Benedict Diederich
    • Kirti Prakash
    Comments & Opinion
    Nature Methods
    Volume: 19, P: 1020-1025
  • The minimal regulatory logic and the evolutionary history of the auxin signalling pathway are explored by studying the much simpler auxin network in Marchantia with a combination of genetic, domain shuffling and biochemical strategies.

    • Hirotaka Kato
    • Sumanth K. Mutte
    • Dolf Weijers
    Research
    Nature Plants
    Volume: 6, P: 473-482