5,968 results found
    1. Biochemistry and Chemical Biology

    Thermodynamic evidence for a dual transport mechanism in a POT peptide transporter

    Joanne L Parker et al.
    Two thermodynamically distinct transport mechanisms operating within the same binding site explains the remarkable promiscuity of POT family transporters towards peptide and drug ligands.
    1. Chromosomes and Gene Expression

    The fail-safe mechanism of post-transcriptional silencing of unspliced HAC1 mRNA

    Rachael Di Santo et al.
    The unspliced HAC1 mRNA does not give rise to detectable protein in budding yeast, despite its cytoplasmic localization, due to a two-part post-transcriptional silencing mechanism.
    1. Chromosomes and Gene Expression

    Ubiquitination-dependent control of sexual differentiation in fission yeast

    Fabrizio Simonetti et al.
    The RNA-binding protein Mmi1 targets its own inhibitor Mei2 for ubiquitination by the E3 ubiquitin ligase Not4/Mot2 in order to preserve its role in meiotic mRNA decay during vegetative growth.
    1. Neuroscience

    IK1 channels do not contribute to the slow afterhyperpolarization in pyramidal neurons

    Kang Wang et al.
    The slow afterhyperpolarization that follows a burst of action potentials is a powerful regulator of neuronal excitability and is not due to IK1 (KCNN4), a member of the SK channel family.
    1. Cancer Biology
    2. Cell Biology

    LAST, a c-Myc-inducible long noncoding RNA, cooperates with CNBP to promote CCND1 mRNA stability in human cells

    Limian Cao et al.
    A c-Myc-transcribed long noncoding RNA namely LAST (LncRNA-assisted stabilization of transcripts) collaborates with a cellular factor CNBP to promote the stability of CCND1/cyclin D1 mRNA post-transcriptionally, ensuring the proper G1/Sphase transition of the cell cycle.
    1. Neuroscience

    Compensation for PKMζ in long-term potentiation and spatial long-term memory in mutant mice

    Panayiotis Tsokas et al.
    The enzyme PKMzeta is crucial for the maintenance of long-term memories, but a closely related enzyme provides a back-up should PKMzeta fail, thus explaining the controversy over why deleting the gene for PKMzeta may not appear to impair memory.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Ionic selectivity and thermal adaptations within the voltage-gated sodium channel family of alkaliphilic Bacillus

    Paul G DeCaen et al.
    Not all members of the bacteria sodium channel family are sodium channels - those found in Bacillus are highly adaptable and can be converted into many selectivity types.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Epistatic mutations in PUMA BH3 drive an alternate binding mode to potently and selectively inhibit anti-apoptotic Bfl-1

    Justin M Jenson et al.
    Short peptides that bind tightly to anti-apoptotic protein Bfl-1 but not other Bcl-2 family members provide a tool for diagnosing cancer cell survival mechanisms and a lead for developing new therapeutics.
    1. Genetics and Genomics

    A large gene family in fission yeast encodes spore killers that subvert Mendel’s law

    Wen Hu et al.
    Two members of a large fission yeast (Schizosaccharomyces pombe) gene family are shown to act as spore killers that enhance their own transmission into progenies by impeding the maturation of spores not inheriting them.

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