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    1. Developmental Biology

    Species-specific maturation profiles of human, chimpanzee and bonobo neural cells

    Maria C Marchetto et al.
    Using iPSCs as a model to study neurodevelopmental differences between human and nonhuman primates lays the groundwork for understanding aspects of human brain evolution and neurological disease susceptibility.
    1. Neuroscience

    A time-stamp mechanism may provide temporal information necessary for egocentric to allocentric spatial transformations

    Avner Wallach et al.
    A novel neural mechanism for precise, unbiased estimation of time intervals in the thalamus of electric fish is likely used for computing distance between object encounters.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Immune genes are hotspots of shared positive selection across birds and mammals

    Allison J Shultz, Timothy B Sackton
    Pathogens, particularly viruses, target the same genes over deep evolutionary time, resulting in shared signatures of positive selection and transcriptional responses at the same genes.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    Ion counting demonstrates a high electrostatic field generated by the nucleosome

    Magdalena Gebala et al.
    First experimental studies on the ion atmosphere around a nucleosome provide a quantitative analysis of the molecule's electrostatic properties.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the rhodopsin-Gαi-βγ complex reveals binding of the rhodopsin C-terminal tail to the gβ subunit

    Ching-Ju Tsai et al.
    The structure of a light-sensitive G protein-coupled receptor in complex with a Gi-protein heterotrimer provides a structural foundation for the role of the receptor C-terminal tail in scaffolding and signaling.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    MERS-CoV spillover at the camel-human interface

    Gytis Dudas et al.
    MERS-CoV infections in the Arabian Peninsula are the result of several hundred spillover events from viruses circulating in camels into the human population.
    1. Immunology and Inflammation

    IgM and IgD B cell receptors differentially respond to endogenous antigens and control B cell fate

    Mark Noviski et al.
    Self-reactive B cells downregulate the IgM but not the IgD B cell receptor, and this serves as a critical tolerance mechanism because IgD is less sensitive to bona fide endogenous antigens than IgM.
    1. Neuroscience

    Pedunculopontine glutamatergic neurons control spike patterning in substantia nigra dopaminergic neurons

    Daniel J Galtieri et al.
    Pedunculopontine neurons can evoke burst spiking in substantia nigra dopaminergic neurons without engaging a subtype of glutamate receptor previously thought to be necessary for this spiking mode.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Incomplete inhibition of HIV infection results in more HIV infected lymph node cells by reducing cell death

    Laurelle Jackson et al.
    Under conditions where the force of HIV infection per cell is high, partial attenuation of infection with inhibitors can increase the number of live infected cells and may paradoxically be beneficial for viral spread.
    1. Developmental Biology

    Growth-factor-mediated coupling between lineage size and cell fate choice underlies robustness of mammalian development

    Néstor Saiz et al.
    A mechanistic basis is provided for the regulative ability of the mammalian embryo offering a long-sought explanation for coordinating cell behaviors at the population level ensuring robustness in developmental outcome.