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    1. Evolutionary Biology

    Rapid evolution of the human mutation spectrum

    Kelley Harris, Jonathan K Pritchard
    Heritable mutations tend to occur within different DNA sequence contexts in different human populations, suggesting that DNA replication and repair often change in efficacy over only a few hundred generations of evolution.
    1. Biochemistry and Chemical Biology

    Flux analysis of cholesterol biosynthesis in vivo reveals multiple tissue and cell-type specific pathways

    Matthew A Mitsche et al.
    Cells use two interdigitated biosynthetic pathways that can be regulated independently to produce diverse bioactive sterols.
    1. Neuroscience
    2. Stem Cells and Regenerative Medicine

    Stem cell-derived cranial and spinal motor neurons reveal proteostatic differences between ALS resistant and sensitive motor neurons

    Disi An et al.
    Stem cell-derived motor neurons with differential ALS vulnerability identified proteasome activity as a possible mechanism that explains their differential sensitivity.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The vacuolar-ATPase complex and assembly factors, TMEM199 and CCDC115, control HIF1α prolyl hydroxylation by regulating cellular iron levels

    Anna L Miles et al.
    An unbiased genome-wide human forward genetic screen identifies the vacuolar ATPase complex and assembly factors as regulators of HIF stability through their actions on intracellular iron metabolism.
    1. Microbiology and Infectious Disease

    Microbiota functional activity biosensors for characterizing nutrient metabolism in vivo

    Darryl A Wesener et al.
    A method has been developed to characterize the expressed biochemical activities of gut microbial communities using retrievable, microscopic, fluorescent-labeled glass beads containing chemically bound surface biomolecules.
    1. Cell Biology
    2. Computational and Systems Biology

    Science Forum: The Human Cell Atlas

    Aviv Regev et al.
    Advances in techniques for analysing single cells and tissues have inspired an international effort to create comprehensive reference maps of all human cells - the fundamental units of life - as a basis for both understanding human health and diagnosing, monitoring and treating disease.
    1. Cell Biology
    2. Developmental Biology

    The E3 ligase Ubr3 regulates Usher syndrome and MYH9 disorder proteins in the auditory organs of Drosophila and mammals

    Tongchao Li et al.
    A novel mechanism links two myosins associated with deafness in auditory organs.
    1. Genetics and Genomics

    Drosophila PDGF/VEGF signaling from muscles to hepatocyte-like cells protects against obesity

    Arpan C Ghosh et al.
    A muscle-derived signaling molecule suppresses excessive accumulation of lipids in the Drosophila adipose tissue by activating the Pi3K/Akt/mTOR signaling cascade in the Drosophila hepatocyte-like cells.
    1. Genetics and Genomics

    The endonuclease Cue2 cleaves mRNAs at stalled ribosomes during No Go Decay

    Karole N D'Orazio et al.
    Cue2 is an endonuclease that cleaves mRNA in the A site of the lagging ribosome upon ribosome collision events.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    The MBD7 complex promotes expression of methylated transgenes without significantly altering their methylation status

    Dongming Li et al.
    The METHYL-CpG-BINDING DOMAIN 7 (MBD7) complex promotes the activation (rather than repression) of transgenes that undergo DNA methylation and it does so without significantly altering their methylation status, placing this complex downstream of DNA methylation.