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    1. Neuroscience

    Nuclear envelope protein MAN1 regulates clock through BMAL1

    Shu-Ting Lin et al.
    A protein within the nuclear membrane, MAN1, controls the expression of the circadian clock gene, BMAL1, in an example of cross-talk between two major gene regulatory pathways.
    1. Neuroscience

    Differential effects of light and feeding on circadian organization of peripheral clocks in a forebrain Bmal1 mutant

    Mariko Izumo et al.
    Conditional deletion of Bmal1 in the forebrain/SCN reveals an essential role of a functional master clock in maintaining synchronized and high amplitude rhythms of peripheral clocks.
    1. Genetics and Genomics

    Spliceosome factors target timeless (tim) mRNA to control clock protein accumulation and circadian behavior in Drosophila

    Iryna Shakhmantsir et al.
    Alternative splicing provides a mechanism to maintain oscillations of the circadian clock.
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    CK1/Doubletime activity delays transcription activation in the circadian clock

    Deniz Top et al.
    Doubletime kinase stabilizes the PER/TIM complex and regulates its transcriptional inhibition function to delay circadian transcriptional activity, helping sustain 24-hour periodicity in the circadian clock.
    1. Genetics and Genomics
    2. Neuroscience

    Temporal transcriptomics suggest that twin-peaking genes reset the clock

    William G Pembroke et al.
    RNA sequencing reveals the finer details of circadian variation in the mammalian master pacemaker over 24 hours, which suggests that transcriptional timing influences clock resetting mechanisms.
    1. Biochemistry and Chemical Biology

    Dynamics at the serine loop underlie differential affinity of cryptochromes for CLOCK:BMAL1 to control circadian timing

    Jennifer L Fribourgh et al.
    The affinity of circadian repressors CRY1 and CRY2 for their cognate transcription factor CLOCK:BMAL1 is regulated by differential dynamics at the serine loop and interactions with the PER2 corepressor.
    1. Chromosomes and Gene Expression
    2. Neuroscience

    Striking circadian neuron diversity and cycling of Drosophila alternative splicing

    Qingqing Wang et al.
    Diverse and widespread novel alternative pre-mRNA splicing isoforms as well as cycling alternative splicing events that undergo time-of-day dependent changes are identified in isolated Drosophila neuron groups.
    1. Cell Biology
    2. Genetics and Genomics

    KPNB1 mediates PER/CRY nuclear translocation and circadian clock function

    Yool Lee et al.
    KPNB1 regulates rhythmic spatio-temporal nuclear import of the PER/CRY complex and is required for negative feedback repression in mammalian and fly clock function.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    The cyanobacterial circadian clock follows midday in vivo and in vitro

    Eugene Leypunskiy et al.
    The cyanobacterial core clock tracks midday regardless of day length, which can be understood in terms of a model for how the environment alters the clock limit cycle.
    1. Neuroscience

    A highly tunable dopaminergic oscillator generates ultradian rhythms of behavioral arousal

    Ian D Blum et al.
    An internal clock based on brain levels of dopamine works with the circadian clock to maintain daily patterns of alertness and activity, and may be implicated in the altered behavioral patterns seen in schizophrenia and bipolar disorder.