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    1. Immunology and Inflammation

    Long-term antigen exposure irreversibly modifies metabolic requirements for T cell function

    Marie Bettonville et al.
    Long-term exposure to recipient's alloantigens promotes major metabolic defects in T cells that are independent of PD-1-mediated regulation.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Yeast Ded1 promotes 48S translation pre-initiation complex assembly in an mRNA-specific and eIF4F-dependent manner

    Neha Gupta et al.
    Yeast RNA helicase Ded1 stimulates ribosome recruitment of structure-laden native mRNAs in a reconstituted system by interactions between domains in Ded1 and initiation factor eIF4G that stabilizes a Ded1-eIF4F complex.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    The elemental mechanism of transcriptional pausing

    Jason Saba et al.
    Biochemical analyses of transcription complexes, including kinetic studies and probes of translocational and conformational states, establish the elemental mechanism of pausing, which underlies regulation of gene expression in all organisms.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanism of Na+-dependent citrate transport from the structure of an asymmetrical CitS dimer

    David Wöhlert et al.
    The high-resolution x-ray structure of an asymmetrical SeCitS dimer, present in the inward- and outward-facing state, provides a complete mechanism of substrate and ion translocation in a sodium-dependent symporter.
    1. Biochemistry and Chemical Biology

    Adenosine diphosphate restricts the protein remodeling activity of the Hsp104 chaperone to Hsp70 assisted disaggregation

    Agnieszka Kłosowska et al.
    Hsp70 chaperone provides Hsp104 with high efficiency in disaggregation and specificity towards aggregated substrates at the, otherwise limiting, cellular concentrations of adenine nucleotides.
    1. Microbiology and Infectious Disease

    Experimentally guided models reveal replication principles that shape the mutation distribution of RNA viruses

    Michael B Schulte et al.
    A mathematical model that combines stochasticity and spatial structure describes the dynamics of the viral population during an infection cycle, and fitting the model to RNA and virus abundances over time shows that poliovirus follows a geometric replication mode.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    Folding of cohesin’s coiled coil is important for Scc2/4-induced association with chromosomes

    Naomi J Petela et al.
    First evidence of cohesin folding occurring in vivo and during cohesion together with a detailed description of the structural aspects of cohesin's elbow folding through a series of novel structures.
    1. Evolutionary Biology

    The birth of a bacterial tRNA gene by large-scale, tandem duplication events

    Gökçe B Ayan et al.
    A bacterial tRNA gene set rapidly evolves, compensating the loss of one tRNA type by large duplication events that increase the gene copy number of a second, different tRNA type.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Molecular determinants of large cargo transport into the nucleus

    Giulia Paci et al.
    Efficient nuclear transport of very large biomolecules, relevant for viral transport, scales non-linearly with size and its kinetics can be explained by a simple two-parameter energetic model.
    1. Cancer Biology
    2. Chromosomes and Gene Expression

    Loss of Kat2a enhances transcriptional noise and depletes acute myeloid leukemia stem-like cells

    Ana Filipa Domingues et al.
    Histone acetyl-transferase Kat2a preserves leukemia stem cells through frequent transcriptional firing of metabolic and regulatory gene promoters and maintenance of a largely invariant self-renewal program.