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    1. Biochemistry and Chemical Biology

    Ribosomes slide on lysine-encoding homopolymeric A stretches

    Kristin S Koutmou et al.
    Ribosomes undergo an unanticipated movement (‘sliding’) while translating homopolymeric A sequences, which provides a biochemical rationale for the observation that iterated AAA codons are under-represented in gene-coding sequences.
    1. Cancer Biology
    2. Cell Biology

    Many si/shRNAs can kill cancer cells by targeting multiple survival genes through an off-target mechanism

    William Putzbach et al.
    Loading of CD95 and CD95L-derived sequences into the RNA-induced silencing complex elicits a distinct form of RNAi-mediated cell death of cancer cells that results from the targeting of multiple survival genes.
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    Deep transcriptome annotation enables the discovery and functional characterization of cryptic small proteins

    Sondos Samandi et al.
    Conventional annotations of coding sequences have missed thousands of short open-reading frames encoding proteins that are conserved and with specific functions.
    1. Neuroscience

    Learning multiple variable-speed sequences in striatum via cortical tutoring

    James M Murray, G Sean Escola
    Inspired by the sparse, sequential neural activity patterns observed in striatum, a new circuit model implements variable-speed activity, the encoding of multiple sequences, and a tutor/student relationship between cortex and striatum.
    1. Microbiology and Infectious Disease

    Codon usage bias controls mRNA and protein abundance in trypanosomatids

    Laura Jeacock et al.
    Global relative mRNA and protein abundance in trypanosomatids can be effectively estimated at transcriptomic and proteomic scales based on protein-coding sequences alone.
    1. Genetics and Genomics

    Neutral Evolution: The randomness that shapes our DNA

    Kelley Harris
    Just 5% of the human genome is subject to neutral evolution but this process remains central to understanding the history of human migration across the Earth.
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    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Phenotypic Diversity: Setting the bar

    Charles Y Feigin, Ricardo Mallarino
    Analyzing the genomes of rock pigeons demonstrates that genetic variation comes in many forms and can have unexpected origins.
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    1. Developmental Biology
    2. Evolutionary Biology

    Multicellularity: The evolution of gene regulation

    Veronica Hinman, Gregory Cary
    The gene regulation mechanisms necessary for the development of complex multicellular animals have been found in sponges.
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