2,988 results found
    1. Biochemistry and Chemical Biology

    Post-translational Modifications: Reversing ADP-ribosylation

    Giuliana Katharina Moeller, Gyula Timinszky
    Interactions between serines and molecules of ADP-ribose play an important role in signaling that the DNA in a cell has been damaged and needs to be repaired.
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    1. Biochemistry and Chemical Biology

    Serine is the major residue for ADP-ribosylation upon DNA damage

    Luca Palazzo et al.
    Serine residues in proteins are the primary targets for PARP-dependent ADP-ribosylation signalling upon DNA damage.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Molecular structure of human KATP in complex with ATP and ADP

    Kenneth Pak Kin Lee et al.
    MgADP binding to the high-affinity 'consensus' ATPase active site of SUR1 and remodeling of the L0-loop (lasso region) overrides tonic ATP inhibition of KATP channels.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Large-scale filament formation inhibits the activity of CTP synthetase

    Rachael M Barry et al.
    The accumulation of its product, cytidine triphosphate, encourages the enzyme CTP synthetase (CtpS) to form large-scale polymers and inhibits the enzyme's activity.
    1. Chromosomes and Gene Expression

    Distinct roles of ATM and ATR in the regulation of ARP8 phosphorylation to prevent chromosome translocations

    Jiying Sun et al.
    ATM plays an important role in maintaining the fidelity of DNA repair through the regulation of ARP8 phosphorylation to prevent the chromosome abnormality.
    1. Cell Biology

    Mitochondrial flashes regulate ATP homeostasis in the heart

    Xianhua Wang et al.
    Mitochondrial flashes counteract the imbalance of ATP supply-and-demand and constitute an auto-regulator of ATP homeostasis in the heart.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Symmetry broken and rebroken during the ATP hydrolysis cycle of the mitochondrial Hsp90 TRAP1

    Daniel Elnatan et al.
    A flip of the dimer asymmetry following the first ATP hydrolysis provides a mechanistic model for client remodeling by the mitochondrial Hsp90, TRAP1.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the ATP-sensitive potassium channel illuminates mechanisms of assembly and gating

    Gregory M Martin et al.
    Single-particle cryo-electron microscopy reveals the first subnanometer structure of ATP-sensitive potassium (KATP) channels, which provides insight into the structural mechanisms of channel assembly and gating.
    1. Neuroscience

    Inhibiting poly(ADP-ribosylation) improves axon regeneration

    Alexandra B Byrne et al.
    In C. elegans and mouse neurons, the balance between poly(ADP-ribose) glycohydrolases and poly(ADP-ribose) polymerases regulates axon regeneration downstream of DLK-1/MAPKKK signaling.
    1. Cell Biology

    Kinase-dead ATM protein is highly oncogenic and can be preferentially targeted by Topo-isomerase I inhibitors

    Kenta Yamamoto et al.
    Orphan ATM kinase-domain missense mutations are unexpectedly common and form a potent oncogenic event and a biomarker for Topo-isomerase I inhibitor based therapy.

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