3,973 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanism of Na+-dependent citrate transport from the structure of an asymmetrical CitS dimer

    David Wöhlert et al.
    The high-resolution x-ray structure of an asymmetrical SeCitS dimer, present in the inward- and outward-facing state, provides a complete mechanism of substrate and ion translocation in a sodium-dependent symporter.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Fluorescent sensors for activity and regulation of the nitrate transceptor CHL1/NRT1.1 and oligopeptide transporters

    Cheng-Hsun Ho, Wolf B Frommer
    Peptide and nitrate transporters have been converted into fluorescent reporters of transport activity and have been used to measure various transport properties including the dual affinity of the nitrate transceptor
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Bacterial cell cycle control by citrate synthase independent of enzymatic activity

    Matthieu Bergé et al.
    A key enzyme of central energy metabolism, citrate synthase, regulates bacterial cell cycle progression at a very specific stage (S-phase) and independently of its enzymatic activity.
    1. Chromosomes and Gene Expression

    Differentiating Drosophila female germ cells initiate Polycomb silencing by regulating PRC2-interacting proteins

    Steven Z DeLuca et al.
    Characterization of Drosophila female germ cell differentiation shows that nurse cells initiate Polycomb silencing by regulating Pcl and Scm levels to alter the biochemical properties of the PRC2 H3K27 methylase.
    1. Biochemistry and Chemical Biology

    Talin-activated vinculin interacts with branched actin networks to initiate bundles

    Rajaa Boujemaa-Paterski et al.
    At adhesion sites, talin-activated vinculin promotes interactions with the actin network that initiates bundles.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Genomic and phenotypic evolution of Escherichia coli in a novel citrate-only resource environment

    Zachary D Blount et al.
    Transposable elements and gene amplifications can provide variation needed for novel trait refinement and adaptation to new niches, though a recalcitrant organism-environment mismatch may persist.
    1. Evolutionary Biology

    Fine-tuning citrate synthase flux potentiates and refines metabolic innovation in the Lenski evolution experiment

    Erik M Quandt et al.
    A long-term evolution experiment with Escherichia coli shows that the appearance and optimization of a new trait can require both co-opting existing cellular pathways for new roles and reversing a history of previous adaptation.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Dynamic subcellular localization of a respiratory complex controls bacterial respiration

    François Alberge et al.
    The localization of respiratory complexes in the cell membrane emerges as a critical factor for controlling respiration in bacteria.
    1. Cell Biology

    Cytoplasmic protein misfolding titrates Hsp70 to activate nuclear Hsf1

    Anna E Masser et al.
    Hsp70 restricts DNA binding activity of Hsf1 to control the width and amplitude of the heat-shock regulon.
    1. Developmental Biology

    Nkx2.5 marks angioblasts that contribute to hemogenic endothelium of the endocardium and dorsal aorta

    Lyad Zamir et al.
    Live imaging coupled with cell lineage tracing in chick and mouse embryos reveal that the cardiac regulatory gene Nkx2.5 is also transiently expressed in early extra-cardiac hemogenic angioblasts that migrate to the heart, yolk sac and dorsal aorta.

Refine your results by:

Type
Research categories