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Cellular microbiology is the scientific study of the functions and properties of microbial cells. This discipline combines techniques and approaches of classic cell biology and microbiology.
Here, Xian et al. use phosphoproteomics to identify that the Shigella effector OspG interacts with a regulator of Cullin-RING ubiquitin ligases to promote the ubiquitination of septins and consequent inhibition of septin cage formation.
c-di-AMP is essential for bacterial signaling. Here, the authors identify the GlcNAc-sensing regulator DasR as a c-di-AMP receptor and provide molecular insight into their signaling effect on the developmental and antibiotic biosynthesis control across Actinobacteria.
The authors investigate the circadian clock in a unicellular diazotrophic cyanobacterium. They demonstrate the role of the clock in regulating intracellular oxygen dynamics, a necessity to accommodate nitrogen fixation in an oxygen-producing cell.
The predatory bacterium Bdellovibrio exovorus attaches on the surface on other bacteria and feeds on them. Here, the authors study the lifecycle of B. exovorus, showing that it proliferates by non-binary division, firm junctions are established between prey and predator outer membranes, and a proteinaceous S-layer does not protect prey cells against predation.
Single molecule diffusion study to determine the impact of (poly)ribosome distribution, cell aging, protein aggregation, and biomolecular condensate formation on the spatial organization and mobility of proteins in bacteria.
Surface layers (S-layers) are proteinaceous, two-dimensional paracrystalline arrays that constitute a major component of the cell envelope in many prokaryotic species. Here, Herdman et al. investigate S-layer biogenesis in the bacterium Caulobacter crescentus, providing insights into its coordination with the synthesis of other cell envelope components.
This study describes Bdellovibrio bacteriovorus trimeric fibre proteins with diverse adhesive tips that enable the identification of a broad range of prey.
Computational, molecular and structural analyses reveal the presence of bacterial histones that bind DNA to form dense, DNA-enveloping fibres in Bdellovibrio bacteriovorus.