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Abstract Thylakoid membrane remodeling regulates photosynthetic activity in response to changing light, but it is unknown whether such membrane-scale control exists in cyanobacteria, which lack the spatially segregated membrane domains of green algae and plants. Using cryo-electron tomography guided by single-cell hyperspectral correlative imaging, we link spectral acclimation state to thylakoid architecture in far-red light adapting cyanobacteria.
Keywords cryo-electron tomography focused ion beam Chlamydomonas nucleosome clathrin ATP synthase open data EMPIAR segmentation visual proteomics Introduction The concept of “visual proteomics” was first proposed nearly two decades ago, before instrumentation was developed to enable it.1 At its heart is the idea of using cryogenic electron tomography (cryo-ET) to produce comprehensive structural inventories of macromolecular complexes inside native cells (in situ).
Abstract Nitrosopumilus maritimus is an ammonia-oxidizing archaeon that is crucial to the global nitrogen cycle1,2. A critical step for nitrogen oxidation is the entrapment of ammonium ions from a dilute marine environment at the cell surface and their subsequent channelling to the cell membrane of N. maritimus.
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