2,551 results found
    1. Computational and Systems Biology

    Design principles of autocatalytic cycles constrain enzyme kinetics and force low substrate saturation at flux branch points

    Uri Barenholz et al.
    The stability of metabolic autocatalytic cycles that are widespread in central metabolism limits the affinities of enzymes at flux branch points and explains excess expression of these enzymes.
    1. Biochemistry and Chemical Biology

    The structural determinants of PH domain-mediated regulation of Akt revealed by segmental labeling

    Nam Chu et al.
    NMR and biochemical analysis reveal new insights into how the critical protein kinase Akt is regulated by phosphorylation and is inhibited by an experimental therapeutic.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Proofreading through spatial gradients

    Vahe Galstyan et al.
    Theoretical study shows how enzymes can achieve substrate proofreading by taking advantage of existing molecular gradients in the cell while not being endowed with structural features typically required for proofreading.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Global divergence in critical income for adult and childhood survival: analyses of mortality using Michaelis–Menten

    Ryan J Hum et al.
    A mathematical model based on enzyme kinetics shows how the relationships between life expectancy, survival rates for children and adults, and national income change over time.
    1. Chromosomes and Gene Expression

    SUV39 SET domains mediate crosstalk of heterochromatic histone marks

    Alessandro Stirpe et al.
    Clr4, a highly conserved SUV39 histone methyltransferase, requires its SET domain to sense histone H3K14 ubiquitination in order to maintain heterochromatin and H3K9 methylation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis for interdomain communication in SHIP2 providing high phosphatase activity

    Johanne Le Coq et al.
    The SHIP2 inositol phosphatase is an important upstream regulator of the Akt signaling pathway, which requires a catalytic core formed by the phosphatase domain tightly packed to a C2 domain for its function.
    1. Cancer Biology
    2. Structural Biology and Molecular Biophysics

    Dynamics of human protein kinase Aurora A linked to drug selectivity

    Warintra Pitsawong et al.
    Slow conformational changes after drug binding rationalize selectivity, affinity and long on-target residence time for kinase inhibitors.
    1. Cell Biology
    2. Computational and Systems Biology

    Bistability of a coupled Aurora B kinase-phosphatase system in cell division

    Anatoly V Zaytsev et al.
    Self-activating Aurora B kinase, opposed by an inhibitory phosphatase, forms spatial phosphorylation patterns during cell division.
    1. Genetics and Genomics
    2. Plant Biology

    A gene horizontally transferred from bacteria protects arthropods from host plant cyanide poisoning

    Nicky Wybouw et al.
    The enzyme that allows some mites and insects to detoxify the hydrogen cyanide produced by plants has been identified.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Structure and mechanism of a Hypr GGDEF enzyme that activates cGAMP signaling to control extracellular metal respiration

    Zachary F Hallberg et al.
    A newfound signaling enzyme that diverged from a protein family ubiquitous in bacteria provides mechanistic insights into how new signaling activity emerges to control distinct cellular function and physiology.

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