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    1. Cell Biology

    Selective dephosphorylation by PP2A-B55 directs the meiosis I-meiosis II transition in oocytes

    S Zachary Swartz et al.
    Time-course phosphoproteomics reveals that selective dephosphorylation is critical for directing the MI/MII transition and that, through its inherent phospho-threonine preference, PP2A-B55 imposes specific phosphoregulated behaviors that distinguish the two meiotic divisions.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    PPP1R15A-mediated dephosphorylation of eIF2α is unaffected by Sephin1 or Guanabenz

    Ana Crespillo-Casado et al.
    The notion that the drug-like small molecule Sephin1 protects against protein misfolding by selectively disrupting a cellular phosphatase is refuted.
    1. Cancer Biology

    Sperm-specific COX6B2 enhances oxidative phosphorylation, proliferation, and survival in human lung adenocarcinoma

    Chun-Chun Cheng et al.
    The cancer testis antigen COX6B2 enhances cytochrome c oxidase activity thereby promoting proliferation and survival in cancer cells and represents a therapeutic target for inhibiting oxidative phosphorylation selectively in tumors.
    1. Developmental Biology

    Dephosphorylation of the NPR2 guanylyl cyclase contributes to inhibition of bone growth by fibroblast growth factor

    Leia C Shuhaibar et al.
    Fibroblast growth factor induces dephosphorylation and inactivation of the NPR2 guanylyl cyclase, thus decreasing cyclic GMP production in growth plate chondrocytes and contributing to FGF-dependent decreases in bone growth.
    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

    Phosphorylation of β-arrestin2 at Thr383 by MEK underlies β-arrestin-dependent activation of Erk1/2 by GPCRs

    Elisabeth Cassier et al.
    Phosphoproteomics identifies β-arrestin 2 phosphorylation at Thr383 by MEK as a key step of GPCR-induced Erk½ activation, thus providing new insight into the molecular mechanism underlying β-arrestin-dependent GPCR-operated signaling.
    1. Cancer Biology
    2. Cell Biology

    Mitochondrial fusion supports increased oxidative phosphorylation during cell proliferation

    Cong-Hui Yao et al.
    In addition to increasing glycolysis, some proliferating cells exhibiting the Warburg effect also increase oxidative phosphorylation through mitochondrial fusion.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Cell-cycle dependent phosphorylation of yeast pericentrin regulates γ-TuSC-mediated microtubule nucleation

    Tien-chen Lin et al.
    Phosphorylation of Spc110 N-terminal domain encompassing conserved motifs and its interaction with conserved GCP3 N-terminal domain regulate the oligomerization of gamma-tubulin small complexes (γ-TuSCs).
    1. Cell Biology

    The peroxisome counteracts oxidative stresses by suppressing catalase import via Pex14 phosphorylation

    Kanji Okumoto et al.
    H2O2-induced phosphorylation at Ser232 of Pex14 spatiotemporally regulates peroxisomal import of catalase, functioning in counteracting action against oxidative stress by the increase of cytosolic catalase.
    1. Structural Biology and Molecular Biophysics

    Structure of substrate-bound SMG1-8-9 kinase complex reveals molecular basis for phosphorylation specificity

    Lukas M Langer et al.
    First structural view of a substrate-bound PIKK (PI3K-related-kinase) by cryo-EM explains phosphorylation specificity toward a short amino-acid motif shared across the PIKK family and rationalizes PIKK auto-inhibition by regulatory domain.