391 results found
    1. Microbiology and Infectious Disease

    Distinct cytoskeletal proteins define zones of enhanced cell wall synthesis in Helicobacter pylori

    Jennifer A Taylor, Benjamin P Bratton ... Nina R Salama
    The helical bacterium Helicobacter pylori patterns cell wall synthesis using two distinct cytoskeletal proteins, CcmA and MreB, to achieve its characteristic shape.
    1. Cancer Biology
    2. Cell Biology

    Bim escapes displacement by BH3-mimetic anti-cancer drugs by double-bolt locking both Bcl-XL and Bcl-2

    Qian Liu, Elizabeth J Osterlund ... David William Andrews
    The pro-apoptotic BH3-protein Bim contains two distinct binding sites for anti-apoptotic proteins that together confer resistance of Bim/Bcl-2 and Bim/Bcl-XL complexes to BH3-mimetic drugs under development for use in humans.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The Peptidisc, a simple method for stabilizing membrane proteins in detergent-free solution

    Michael Luke Carlson, John William Young ... Franck Duong
    A simple, yet elegant method for robust self-assembly of diverse membrane proteins into soluble peptide nanoparticles for their structural and functional analysis in detergent-free solutions.
    1. Neuroscience

    Noninvasive quantification of axon radii using diffusion MRI

    Jelle Veraart, Daniel Nunes ... Noam Shemesh
    Cell-specific architectural properties such as the axon diameter of the white matter of the human brain can be quantified accurately and non-invasively using diffusion magnetic resonance imaging.
    1. Biochemistry and Chemical Biology

    Ribosome surface properties may impose limits on the nature of the cytoplasmic proteome

    Paul E Schavemaker, Wojciech M Śmigiel, Bert Poolman
    The diffusion coefficients of proteins in the cytoplasm depend on their net charge and the distribution of charge over the protein surface, with positive proteins moving up to 100-fold slower because they bind to ribosomes.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    An engineered biosensor enables dynamic aspartate measurements in living cells

    Kristian Davidsen, Jonathan S Marvin ... Lucas B Sullivan
    A genetically encoded fluorescent biosensor reveals temporally resolved changes to aspartate concentration during genetic, pharmacological, and nutritional manipulations.
    1. Microbiology and Infectious Disease

    Distinct regions of H. pylori’s bactofilin CcmA regulate protein–protein interactions to control helical cell shape

    Sophie R Sichel, Benjamin P Bratton, Nina R Salama
    The helical cell shape of Helicobacter pylori depends on the polymerizing cytoskeletal protein CcmA’s recruitment to the cell envelope by Csd5 and CcmA’s indirect stabilization of a periplasmic cell wall hydrolase via interactions with the transmembrane protein Csd7.
    1. Biochemistry and Chemical Biology

    Syntaxin-6 delays prion protein fibril formation and prolongs the presence of toxic aggregation intermediates

    Daljit Sangar, Elizabeth Hill ... Jan Bieschke
    A new native prion protein aggregation assay shows that syntaxin-6, a risk factor for sporadic Creutzfeldt–Jakob disease, delays prion protein fibril formation and prolongs the presence of toxic aggregation intermediates.
    1. Structural Biology and Molecular Biophysics
    2. Evolutionary Biology

    An atomic-resolution view of neofunctionalization in the evolution of apicomplexan lactate dehydrogenases

    Jeffrey I Boucher, Joseph R Jacobowitz ... Douglas L Theobald
    The convergent evolution of unusually strict substrate specificity in apicomplexan LDHs arose by classic neofunctionalization of a duplicated MDH gene via few mutations of large effect.
    1. Cell Biology

    PM2.5 leads to adverse pregnancy outcomes by inducing trophoblast oxidative stress and mitochondrial apoptosis via KLF9/CYP1A1 transcriptional axis

    Shuxian Li, Lingbing Li ... Xietong Wang
    Airborne PM2.5 exposure triggers oxidative stress and mitochondrial apoptosis in placental trophoblast cells via the KLF9/CYP1A1 transcriptional axis, ultimately leading to adverse pregnancy outcomes.

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