1,796 results found
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Abundant toxin-related genes in the genomes of beneficial symbionts from deep-sea hydrothermal vent mussels

    Lizbeth Sayavedra et al.
    Beneficial symbiotic bacteria encode an exceptional number of toxin-related genes that are all expressed by the symbionts in the host, supporting their key role in host-microbe interactions.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Structures of diverse poxin cGAMP nucleases reveal a widespread role for cGAS-STING evasion in host–pathogen conflict

    James B Eaglesham et al.
    Poxin enzymes are a diverse family of insect and viral 2′3′-cGAMP nucleases, which evolved from self-cleaving RNA virus accessory proteases.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    A genetic selection reveals functional metastable structures embedded in a toxin-encoding mRNA

    Sara Masachis et al.
    A genetic selection of toxicity suppressors coupled to high-throughput sequencing has captured metastable RNA structures that co-transcriptionally inhibit the translation of a bacterial toxin.
    1. Microbiology and Infectious Disease

    Infectious polymorphic toxins delivered by outer membrane exchange discriminate kin in myxobacteria

    Christopher N Vassallo et al.
    Serial cell-to-cell transfer of lipoprotein toxins by outer membrane exchange provides a potent platform for kin discrimination in Myxococcus xanthus.
    1. Structural Biology and Molecular Biophysics

    Tarantula toxins use common surfaces for interacting with Kv and ASIC ion channels

    Kanchan Gupta et al.
    The tarantula toxins psalmotoxin and guangxitoxin have a similar concave surface for interacting with α-helices in voltage-gated and acid-sensing ion channels.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Structure of a pore-blocking toxin in complex with a eukaryotic voltage-dependent K+ channel

    Anirban Banerjee et al.
    Charybdotoxin, a toxin produced by scorpions, blocks a K+ channel by binding in a lock-and-key fashion to the mouth of the channel and presenting a lysine amino group, which serves as a K+ mimic in the selectivity filter.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Bordetella adenylate cyclase toxin is a unique ligand of the integrin complement receptor 3

    Radim Osicka et al.
    A toxin produced by the bacterium Bordetella pertussis preferentially binds to non-activated integrin complement receptor 3 outside of its ligand-binding I-domain and efficiently blocks downstream signaling of the integrin through elevation of cytosolic cAMP.
    1. Structural Biology and Molecular Biophysics

    Structural insights into human acid-sensing ion channel 1a inhibition by snake toxin mambalgin1

    Demeng Sun et al.
    Mambalgin1 binds to the thumb domain of human ASIC1a channel and inhibits the channel through hindering the proton-induced transitions from the resting closed state to the active and/or desensitized state.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    An interbacterial DNA deaminase toxin directly mutagenizes surviving target populations

    Marcos H de Moraes et al.
    Interbacterial interactions can promote mutagenesis, and possibly adaptation, when intoxicated cells survive exposure to type VI secretion-delivered DNA deaminase toxins.
    1. Structural Biology and Molecular Biophysics

    Designed α-sheet peptides inhibit amyloid formation by targeting toxic oligomers

    Gene Hopping et al.
    Novel designed alpha-sheet peptides inhibit amyloidosis in two different systems and preferentially bind the toxic oligomer.

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