1,403 results found
    1. Biochemistry and Chemical Biology

    Thermodynamic evidence for a dual transport mechanism in a POT peptide transporter

    Joanne L Parker et al.
    Two thermodynamically distinct transport mechanisms operating within the same binding site explains the remarkable promiscuity of POT family transporters towards peptide and drug ligands.
    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. Biochemistry and Chemical Biology

    Insights into AMS/PCAT transporters from biochemical and structural characterization of a double Glycine motif protease

    Silvia C Bobeica et al.
    Structural and biochemical characterization of the protease domain of an ABC transporter demonstrates the basis for recognition of substrate leader peptides.
    1. Biochemistry and Chemical Biology

    De novo macrocyclic peptides dissect energy coupling of a heterodimeric ABC transporter by multimode allosteric inhibition

    Erich Stefan et al.
    By random nonstandard peptide integrated discovery, combinatorial macrocyclic peptides were leavaged that target a heterodimeric ABC transport complex and explore fundamental principles of the substrate translocation cycle.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Structural basis of malodour precursor transport in the human axilla

    Gurdeep S Minhas et al.
    Discovery of the structural basis for recognition and uptake of a human precursor for body odour production reveals an important role for bacterial peptide transport and novel routes to prevent its production in humans.
    1. Structural Biology and Molecular Biophysics

    Structural basis of substrate recognition by a polypeptide processing and secretion transporter

    Virapat Kieuvongngam et al.
    Cryo-EM structure of a peptidase-containing ABC transporter in complex with its protein substrate reveals a mechanism of coupling substrate cleavage to translocation.
    1. Immunology and Inflammation

    Variations in HLA-B cell surface expression, half-life and extracellular antigen receptivity

    Brogan Yarzabek et al.
    Lymphocytes and monocytes maintain their cell surface HLA-B via different mechanisms, which in turn differently influence cell-surface expression, half-life and peptide receptivity of HLA-B allotypes.
    1. Cell Biology
    2. Neuroscience

    C9orf72 arginine-rich dipeptide repeat proteins disrupt karyopherin-mediated nuclear import

    Lindsey R Hayes et al.
    Poly-PR and poly-GR interact with importin β, disrupt importin-cargo loading, and inhibit nuclear import in permeabilized cells in a manner that can be rescued by RNA.
    1. Genetics and Genomics
    2. Neuroscience

    Neuropeptide ACP facilitates lipid oxidation and utilization during long-term flight in locusts

    Li Hou et al.
    CRISPR/Cas 9 technology and multiple-omics study reveal an essential regulatory role of neuropeptide ACP in lipid utilization related to prolonged flight of locusts.
    1. Computational and Systems Biology

    Quantitative time-resolved analysis reveals intricate, differential regulation of standard- and immuno-proteasomes

    Juliane Liepe et al.
    Experimental and computational analyses reveal how proteasomal hydrolysis is regulated and show that peptide transport is the rate-limiting step and the main differentiating factor between human standard- and immuno-proteasomes.

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