322 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. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The neuronal calcium sensor NCS-1 regulates the phosphorylation state and activity of the Gα chaperone and GEF Ric-8A

    Daniel Muñoz-Reyes, Levi J McClelland ... Maria Jose Sanchez-Barrena
    Biochemical, biophysical, and structural approach to determine the molecular basis of the calcium-sensitive regulation of the Gα chaperone and guanine exchange factor Ric-8A by the neuronal calcium sensor NCS-1.
    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. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Molecular dynamics-based refinement and validation for sub-5 Å cryo-electron microscopy maps

    Abhishek Singharoy, Ivan Teo ... Klaus Schulten
    New hybrid structure determination methods leveraging the inherent biophysical properties of a macromolecule through molecular dynamics simulations provide accurate and cost-efficient ways of achieving atomic structures from high resolution cryo-electron density maps.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structures reveal opening of the store-operated calcium channel Orai

    Xiaowei Hou, Shana R Burstein, Stephen Barstow Long
    The structure of the calcium channel Orai in an open conformation reveals a dilated pore and gives insight into mechanisms of ion permeation and calcium selectivity.
    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. Structural Biology and Molecular Biophysics

    Distinct Activation Mechanisms of CXCR4 and ACKR3 Revealed by Single-Molecule Analysis of their Conformational Landscapes

    Christopher T Schafer, Raymond F Pauszek ... David P Millar
    Not revised
    Reviewed Preprint v1
    • Important
    • Convincing
    1. Computational and Systems Biology
    2. Neuroscience

    Narrow equilibrium window for complex coacervation of tau and RNA under cellular conditions

    Yanxian Lin, James McCarty ... Songi Han
    Liquid-liquid phase separation of tau is demonstrated to be an equilibrium state, stable only within a narrow range near physiological conditions, and thus has the capacity to regulate biological processes.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Interplay between charge distribution and DNA in shaping HP1 paralog phase separation and localization

    Tien M Phan, Young C Kim ... Jeetain Mittal
    Despite highly conserved sequences, subtle variations in HP1 paralog charge distribution influence distinct liquid-liquid phase separation behaviors, ultimately impacting DNA-mediated heterochromatin organization.
    1. Neuroscience

    Semiochemical responsive olfactory sensory neurons are sexually dimorphic and plastic

    Aashutosh Vihani, Xiaoyang Serene Hu ... Hiroaki Matsunami
    Semiochemicals activate a subpopulation of sexually dimorphic olfactory sensory neurons.

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