4,739 results found
    1. Cell Biology

    β3-Adrenoceptor redistribution impairs NO/cGMP/PDE2 signalling in failing cardiomyocytes

    Sophie Schobesberger et al.
    β3-AR signalling via cGMP in cardiomyocytes is regulated via phosphodiesterase 2 and 5 degradation, it is potentially cardioprotective, but dysregulated in heart failure through signal redistribution and higher phosphodiesterase activity.
    1. Structural Biology and Molecular Biophysics

    Structural model for differential cap maturation at growing microtubule ends

    Juan Estévez-Gallego et al.
    The tubulin GTPase cycle structurally modulates the microtubule cap, causing lattice expansion, which is an intermediate state involved in phosphate release and regulatory signaling.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Sir2 phosphorylation through cAMP-PKA and CK2 signaling inhibits the lifespan extension activity of Sir2 in yeast

    Woo Kyu Kang et al.
    The deacetylase Sir2 fine-tunes transcription of PMA1 and other aging related genes in a cAMP-PKA and CK2 signaling dependent manner.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The speed of GTP hydrolysis determines GTP cap size and controls microtubule stability

    Johanna Roostalu et al.
    GTPase-deficient microtubules are hyper-stable and have longer EB binding regions, demonstrating that EBs bind the GTP cap.
    1. Structural Biology and Molecular Biophysics

    A synthetic peptide that prevents cAMP regulation in mammalian hyperpolarization-activated cyclic nucleotide-gated (HCN) channels

    Andrea Saponaro et al.
    Cell-penetrating peptide drugs prevent adrenergic regulation of pacemaker channels without altering the overall response of the cell to cAMP.
    1. Cell Biology

    PDE2A2 regulates mitochondria morphology and apoptotic cell death via local modulation of cAMP/PKA signalling

    Stefania Monterisi et al.
    The enzyme phosphodiesterase 2A2 localises at the mitochondrial membrane and its inhibition results in a local increase in cAMP concentration, mitochondrial elongation and resistance to apoptosis.
    1. Neuroscience

    An evolutionarily conserved mechanism for cAMP elicited axonal regeneration involves direct activation of the dual leucine zipper kinase DLK

    Yan Hao et al.
    Axonal damage sensing kinase DLK is a direct target and mediator of the cAMP effector kinase PKA in a unified mechanism for stimulating axonal regeneration.
    1. Plant Biology

    A novel role for the root cap in phosphate uptake and homeostasis

    Satomi Kanno et al.
    Real-time 33P imaging combined with specific complementation of inorganic phosphate transport in the root cap reveals this tissue’s contribution to phosphate uptake.
    1. Neuroscience

    High-throughput microcircuit analysis of individual human brains through next-generation multineuron patch-clamp

    Yangfan Peng et al.
    Combining a multineuron patch-clamp system with an automated pipette pressure and cleaning device enables efficient screening of synaptic connectivity in human brain slices and allows inter-individual comparison.
    1. Cell Biology

    A novel biosensor to study cAMP dynamics in cilia and flagella

    Shatanik Mukherjee et al.
    A new FRET-based cAMP biosensor with nanomolar sensitivity makes it possible to measure cAMP dynamics in miniscule subcellular compartments like cilia and flagella.

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