818 results found
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Host-selected mutations converging on a global regulator drive an adaptive leap towards symbiosis in bacteria

    M Sabrina Pankey et al.
    Selective forces imposed by the squid animal host drive rapid adaptation of non-native Vibrio fischeri bacteria through convergent mutations of large effect, unmasking preexisting coordinated regulation of symbiosis.
    1. Cell Biology

    Glucose restriction drives spatial reorganization of mevalonate metabolism

    Sean Rogers et al.
    Genetic and biochemical analyses, coupled with fluorescence imaging, reveal that spatial compartmentalization of HMG-CoA Reductases at yeast ER-lysosome contacts modulates mevalonate pathway flux during glucose restriction, enabling metabolic adaptation.
    1. Biochemistry and Chemical Biology
    2. Developmental Biology

    Hormone-sensitive lipase couples intergenerational sterol metabolism to reproductive success

    Christoph Heier et al.
    An ancestral enzyme tailors allocation of essential lipid resources to the progeny and connects maternal and embryonic sterol metabolism for reproductive success.
    1. Developmental Biology
    2. Neuroscience

    Mitochondrial fusion but not fission regulates larval growth and synaptic development through steroid hormone production

    Hector Sandoval et al.
    The dual role of Drosophila Mitofusin in steroid hormone production and cholesterol ester storage, which is evolutionary conserved by the combined expression of the two mammalian Mitofusins, ensures proper synaptic development.
    1. Biochemistry and Chemical Biology

    Action of CMG with strand-specific DNA blocks supports an internal unwinding mode for the eukaryotic replicative helicase

    Lance Langston, Mike O’Donnell
    The CMG complex, the replicative helicase in eukaryotes, uses a different mechanism from bacterial and viral helicases by engaging both strands of parental DNA with substantial force and unwinding the duplex within the central channel of CMG.
    1. Biochemistry and Chemical Biology

    Exchange of water for sterol underlies sterol egress from a StARkin domain

    George Khelashvili et al.
    The capture and export of a hydrophobic sterol molecule from the binding pocket of a Lam/GramD1 sterol-binding protein is unexpectedly mediated by water.
    1. Computational and Systems Biology

    Active contraction of microtubule networks

    Peter J Foster et al.
    Microtubule networks in frog egg extracts can spontaneously contract in a manner that can be quantitatively described by an active fluid model.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Lysosomal cholesterol export reconstituted from fragments of Niemann-Pick C1

    Michael Nguyen Trinh et al.
    The N-terminal domain of one NPC1 molecule can transfer its cholesterol to another NPC1 molecule lacking the N-terminal domain, suggesting that NPC1 forms multimers that transport cholesterol out of lysosomes.
    1. Cell Biology

    Niemann-Pick type C proteins promote microautophagy by expanding raft-like membrane domains in the yeast vacuole

    Takuma Tsuji et al.
    Sterol transport by Niemann-Pick type C proteins induces the expansion of raft-like domains in the yeast vacuole, enabling engulfment of lipid droplets by microautophagy.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Whole genome comparison of a large collection of mycobacteriophages reveals a continuum of phage genetic diversity

    Welkin H Pope et al.
    A continuum of genome relationships is discovered through comparative genomics of 627 sequenced mycobacteriophages isolated and characterized in an integrated research/education initiative.

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