2,945 results found
    1. Biochemistry and Chemical Biology

    Genome-wide effects of the antimicrobial peptide apidaecin on translation termination in bacteria

    Kyle Mangano et al.
    Inhibition of bacterial protein synthesis by an antimicrobial peptide apidaecin triggers translation arrest at the stop codons, ribosome queuing and pervasive stop codon readthrough.
    1. Plant Biology

    The manifold actions of signaling peptides on subcellular dynamics of a receptor specify stomatal cell fate

    Xingyun Qi et al.
    A binary cell fate decision to be or not to be stomata is regulated by multiple peptide ligands, each triggering a unique subcellular dynamics of their shared receptor.
    1. Structural Biology and Molecular Biophysics

    Structural basis of ribosomal peptide macrocyclization in plants

    Joel Haywood et al.
    The first crystal structure of an active plant asparaginyl endopeptidase reveals a tetrahedral intermediate state in its active site, which may help to explain why these enzymes have been independently recruited to perform peptide macrocyclization.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    A polyomavirus peptide binds to the capsid VP1 pore and has potent antiviral activity against BK and JC polyomaviruses

    Joshua R Kane et al.
    A peptide derived from BK and JC polyomavirus protein VP2/3 inhibits viral infection by targeting a binding site in the pore of polyomavirus VP1 pentamers, enabling future VP1-targeted therapeutic strategies.
    1. Cancer Biology
    2. Developmental Biology

    The antimicrobial peptide defensin cooperates with tumour necrosis factor to drive tumour cell death in Drosophila

    Jean-Philippe Parvy et al.
    Natural activity of the antimicrobial peptide Defensin includes execution of tumour cell death by tumour necrosis factor in Drosophila.
    1. Neuroscience

    Luqin-like RYamide peptides regulate food-evoked responses in C. elegans

    Hayao Ohno et al.
    Identification and functional characterization of C. elegans luqin-like arginine-tyrosine-NH2 (RYamide) peptides reveal their critical role in feeding-related processes.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A vocabulary of ancient peptides at the origin of folded proteins

    Vikram Alva et al.
    A comparative study of modern proteins identifies 40 fragments that may represent the observable remnants of a primordial RNA-peptide world.
    1. Developmental Biology

    Drosophila neprilysins control insulin signaling and food intake via cleavage of regulatory peptides

    Benjamin Hallier et al.
    The catalytic activity of a Drosophila neprilysin is critical to proper insulin expression and food intake by regulating homeostasis of distinct signaling peptides.
    1. Immunology and Inflammation

    T cell immunodominance is dictated by the positively selecting self-peptide

    Wan-Lin Lo et al.
    The T cell repertoire can display immunodominance to an epitope as a result of optimal positive selection in the thymus by one self-peptide/MHC ligand.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural insight into the activation of a class B G-protein-coupled receptor by peptide hormones in live human cells

    Lisa Seidel et al.
    Agonist and antagonist peptides of the corticotropin-releasing factor receptor type 1 adopt different folds and stabilize distinct conformations of the receptor transmembrane domain, which involves tilting of helices VI and VII around conserved glycine hinges.

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