18,571 results found
    1. Genetics and Genomics

    Spontaneous mutations and the origin and maintenance of quantitative genetic variation

    Wen Huang, Richard F Lyman ... Trudy FC Mackay
    Whole genome DNA sequence analysis, genome wide gene expression and complex organismal phenotypes in Drosophila mutation accumulation lines provide a robust estimate of the spontaneous mutation rate and mutational effects.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A Meier-Gorlin syndrome mutation in a conserved C-terminal helix of Orc6 impedes origin recognition complex formation

    Franziska Bleichert, Maxim Balasov ... James M Berger
    Electron microscopy uncovers the structure of the origin recognition complex (ORC) in metazoans, and reveals how mutations in the ORC6 subunit lead to Meier-Gorlin syndrome in humans.
    1. Cell Biology

    Two subunits of human ORC are dispensable for DNA replication and proliferation

    Etsuko Shibata, Manjari Kiran ... Anindya Dutta
    Human cell lines replicate and proliferate without ORC1 or ORC2, two subunits of the replication initiator protein complex ORC, which has till now been considered essential for DNA replication.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    A helicase-tethered ORC flip enables bidirectional helicase loading

    Shalini Gupta, Larry J Friedman ... Stephen P Bell
    A single origin–recognition complex (ORC) directs loading of a pair of head-to-head Mcm2-7 replicative DNA helicases by forming a protein tether to the first helicase, releasing from its initial DNA-binding site, and rebinding the origin DNA in the opposite orientation.
    1. Neuroscience

    Neural mediation of greed personality trait on economic risk-taking

    Weiwei Li, Haixia Wang ... Jian Li
    Greed personality trait is associated with behavioral loss aversion via the mediation of the neural loss aversion signal in the medial orbitofrontal cortex.
    1. Ecology

    Wandering albatrosses exert high take-off effort only when both wind and waves are gentle

    Leo Uesaka, Yusuke Goto ... Kentaro Q Sakamoto
    Wind and ocean wave conditions experienced by albatrosses were estimated using an animal-borne recorder and revealed that take-off was easier under higher wave conditions.
    1. Biochemistry and Chemical Biology

    Cryo-EM structures reveal that RFC recognizes both the 3′- and 5′-DNA ends to load PCNA onto gaps for DNA repair

    Fengwei Zheng, Roxana Georgescu ... Michael E O'Donnell
    Cryo-EM shows a 5’ DNA site on the RFC clamp loader, in addition to the 3’ site, and biochemical study shows the 5’ site facilitates PCNA loading onto gaps, consistent with genetics indicating the 5’ DNA site facilitates gap repair.
    1. Epidemiology and Global Health
    2. Evolutionary Biology

    A transmission-virulence evolutionary trade-off explains attenuation of HIV-1 in Uganda

    François Blanquart, Mary Kate Grabowski ... Christophe Fraser
    Analysis of epidemiological data reveals that viral loads in newly HIV-1 infected individuals in Uganda have declined for two decades, and evolutionary modelling shows that attenuation of the virus explains this decline.
    1. Neuroscience

    Asymmetric ON-OFF processing of visual motion cancels variability induced by the structure of natural scenes

    Juyue Chen, Holly B Mandel ... Damon A Clark
    The fruit fly estimates visual motion by incorporating ON-OFF asymmetric processing that only improves performance when stimuli have light-dark asymmetries matched to natural scenes.
    1. Neuroscience

    Age-related differences in prefrontal glutamate are associated with increased working memory decay that gives the appearance of learning deficits

    Milena Rmus, Mingjian He ... Matthew R Nassar
    Apparent age-related differences in learning are best accounted for by rapid decay of information in working memory, which is associated with levels of prefrontal glutamate.

Refine your results by:

Type
Research categories