393 results found
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Defining key roles for auxiliary proteins in an ABC transporter that maintains bacterial outer membrane lipid asymmetry

    Shuhua Thong et al.
    Auxiliary proteins play functional roles in modulating the assembly and activity of a non-canonical ABC transporter that is important for the maintenance of outer membrane lipid asymmetry.
    1. Structural Biology and Molecular Biophysics

    Asymmetry of movements in CFTR's two ATP sites during pore opening serves their distinct functions

    Ben Sorum et al.
    In the CFTR chloride channel, ATP bound in the catalytic site promotes pore opening, whereas ATP bound in the non-catalytic site supports unidirectional conformational cycling by preventing pore closure without ATP hydrolysis in the catalytic site.
    1. Developmental Biology

    A mammalian Wnt5a–Ror2–Vangl2 axis controls the cytoskeleton and confers cellular properties required for alveologenesis

    Kuan Zhang et al.
    Regulation of cellular properties such as ligand secretion and migratory ability through changes in the cytoskeleton mediated by a Wnt5a–Ror2–Vangl2 axis is a major determinant of alveolar formation.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    The transpeptidase PBP2 governs initial localization and activity of the major cell-wall synthesis machinery in E. coli

    Gizem Özbaykal et al.
    For initiation of cell-wall insertion, the cross-linking enzyme PBP2 stably binds to a component of the cell envelope that is different from MreB filaments.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    A systematically-revised ribosome profiling method for bacteria reveals pauses at single-codon resolution

    Fuad Mohammad et al.
    With the removal of confounding artifacts, ribosome profiling can yield insight into the mechanism of protein synthesis in bacteria at high resolution.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Fusion surface structure, function, and dynamics of gamete fusogen HAP2

    Juan Feng et al.
    Structure, dynamics, and mutation of a gamete fusion protein and comparisons to viral homologues suggest that after trimerization the domain bearing the membrane-inserting fusion loops can pivot with respect to the trimer 3-fold axis.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Computational prediction of CTCF/cohesin-based intra-TAD loops that insulate chromatin contacts and gene expression in mouse liver

    Bryan J Matthews, David J Waxman
    Certain types of 3D chromatin loops are easy to predict from existing or easily obtainable 2D information, which benefits gene expression studies in tissues/cells/organisms without extensive pre-existing 3D information.
    1. Cancer Biology
    2. Cell Biology

    Transient external force induces phenotypic reversion of malignant epithelial structures via nitric oxide signaling

    Benjamin L Ricca et al.
    In a 3D culture model of breast epithelium, application of a short-timescale compression to single malignant cells promotes the long-timescale development of polarized, growth-arrested structures.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Membrane insertion of α-xenorhabdolysin in near-atomic detail

    Evelyn Schubert et al.
    Cryo-EM and X-ray structures of α-xenorhabdolysin in soluble and pore form of Xenorhabdus nematophila give novel insights into the mechanism of action of bi-component α-pore-forming toxins.
    1. Developmental Biology

    Glucose inhibits cardiac muscle maturation through nucleotide biosynthesis

    Haruko Nakano et al.
    During cardiogenesis, the major role of glucose is not the catabolic extraction of energy but the anabolic biosynthesis of nucleotides.

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