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    1. Microbiology and Infectious Disease

    RNA polymerase III is involved in regulating Plasmodium falciparum virulence

    Gretchen Diffendall, Aurelie Claes ... Artur Scherf
    RNA polymerase III plays a crucial role in controlling virulence in response to environmental changes and provides a new molecular perspective into the development of asymptomatic malaria.
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    1. Structural Biology and Molecular Biophysics

    Activation of a nucleotide-dependent RCK domain requires binding of a cation cofactor to a conserved site

    Celso M Teixeira-Duarte, Fátima Fonseca, João H Morais-Cabral
    Cations are essential cofactors in the ATP activation mechanism of the KtrAB cation channel and appear to be cofactors of many other nucleotide-dependent RCK domains.
    1. Neuroscience

    Presynaptic NMDA receptors facilitate short-term plasticity and BDNF release at hippocampal mossy fiber synapses

    Pablo J Lituma, Hyung-Bae Kwon ... Pablo E Castillo
    By facilitating glutamate and BDNF release, presynaptic NMDA receptors may control information transfer from the dentate gyrus to the CA3 area of the hippocampus.
    1. Medicine

    Inference from longitudinal laboratory tests characterizes temporal evolution of COVID-19-associated coagulopathy (CAC)

    Colin Pawlowski, Tyler Wagner ... Venky Soundararajan
    Longitudinal laboratory testing results tied to SARS-CoV-2 diagnostic PCR results of more than 2500 patients reveal the temporal evolution of COVID-associated coagulopathy.
    1. Structural Biology and Molecular Biophysics

    Functional roles of Mg2+ binding sites in ion-dependent gating of a Mg2+ channel, MgtE, revealed by solution NMR

    Tatsuro Maruyama, Shunsuke Imai ... Masanori Osawa
    Nuclear magnetic resonance analysis revealed the structural and dynamical changes in MgtE during the channel closure caused by the cooperative Mg2+-binding, which had remained undescribed only by a static crystal structure.
    1. Structural Biology and Molecular Biophysics

    An external sodium ion binding site controls allosteric gating in TRPV1 channels

    Andres Jara-Oseguera, Chanhyung Bae, Kenton J Swartz
    Allosteric gating in a transient receptor potential channel is modulated by external sodium ions and a tarantula toxin.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A conserved quality-control pathway that mediates degradation of unassembled ribosomal proteins

    Min-Kyung Sung, Tanya R Porras-Yakushi ... Raymond J Deshaies
    Tom1 is the ubiquitin ligase in yeast that anchors a protein quality control pathway that rapidly eliminates ribosomal proteins that fail to assemble into ribosomes.
    1. Neuroscience

    Cell-specific gain modulation by synaptically released zinc in cortical circuits of audition

    Charles T Anderson, Manoj Kumar ... Thanos Tzounopoulos
    Synaptic zinc is a novel modulator of cortical sound processing - a modulator that increases the gain of principal neurons, but reduces the gain of interneurons.
    1. Computational and Systems Biology
    2. Structural Biology and Molecular Biophysics

    tRNA sequences can assemble into a replicator

    Alexandra Kühnlein, Simon A Lanzmich, Dieter Braun
    Rudimentary cross-catalytic replication can be established by double-hairpins of tRNA-like sequences, implying that replication and translation could have emerged along a common evolutionary trajectory.
    1. Microbiology and Infectious Disease

    Roles for mycobacterial DinB2 in frameshift and substitution mutagenesis

    Pierre Dupuy, Shreya Ghosh ... Michael S Glickman
    Genetic and biochemical analyses reveal an important role for the translesion DNA polymerase DinB2 in mycobacterial mutagenesis, including in the insertion/deletion events that are an increasingly recognized type of diversity in Mycobacterium tuberculosis genomes.