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    1. Neuroscience

    Plasmon resonance and the imaging of metal-impregnated neurons with the laser scanning confocal microscope

    Karen J Thompson et al.
    A new method allows silver- and gold-labeled tissues to be imaged with confocal microscopy, avoiding the problem of fluorescence photobleaching.
    1. Structural Biology and Molecular Biophysics

    Heparin-induced tau filaments are polymorphic and differ from those in Alzheimer’s and Pick’s diseases

    Wenjuan Zhang et al.
    Cryo-EM structures of heparin-induced tau filaments differ from those observed in neurodegenerative disease, illustrating their structural versatility, and prompting questions about the relevance of in vitro amyloid models.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure of catalase determined by MicroED

    Brent L Nannenga et al.
    Building on previous work (Shi et al., 2013), we have used MicroED to determine the structure of catalase at 3.2 Å resolution from a single crystal.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Molecular basis for allosteric specificity regulation in class Ia ribonucleotide reductase from Escherichia coli

    Christina M Zimanyi et al.
    Substrate and effector bound structures of a bacterial ribonucleotide reductase reveal the molecular basis by which substrate preference is modulated by a distal site on the enzyme.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    The AFF4 scaffold binds human P-TEFb adjacent to HIV Tat

    Ursula Schulze-Gahmen et al.
    Structure-function analysis of the super elongation complex formed when HIV replicates inside cells reveals that the HIV-1 Tat protein binds to a cleft between P-TEFb, an enzyme that is involved in normal transcription, and AFF4, a protein that is used to build the super elongation complex
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Atomic structures of fibrillar segments of hIAPP suggest tightly mated β-sheets are important for cytotoxicity

    Pascal Krotee et al.
    Atomic structures of hIAPP fibrillar segments, determined using the cryo electron microscopy method MicroED, reveal that strong, stable intermolecular interactions are important features of cytotoxic amyloid proteins.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Receptor-mediated dimerization of JAK2 FERM domains is required for JAK2 activation

    Ryan D Ferrao et al.
    An intracellular cytokine receptor 'switch' motif is critical for the dimerization of JAK2 and activation of the JAK2 kinase.
  1. November 2013

    Episode 6: November 2013

    In this episode we hear about using electrons for protein crystallography, a receptor for carbon dioxide, arthritis, how the brain responds to a missing hand, and the best shape for whiskers.