25 results found
    1. Neuroscience

    Human macular Müller cells rely more on serine biosynthesis to combat oxidative stress than those from the periphery

    Ting Zhang et al.
    The important role of serine biosynthesis in Müller cells may explain why the macula is so much more prone to developing disease than the rest of the retina.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Plasmodium falciparum parasites deploy RhopH2 into the host erythrocyte to obtain nutrients, grow and replicate

    Natalie A Counihan et al.
    Plasmodium parasites secrete RhopH2 from the rhoptry organelle into their host red blood cell to facilitate the uptake of essential nutrients required for parasite replication and survival.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Quantitative H2S-mediated protein sulfhydration reveals metabolic reprogramming during the integrated stress response

    Xing-Huang Gao et al.
    ATF4, the master regulator of transcription during the Integrated Stress Response (ISR), causes global changes in cysteine sulfhydration of proteins and this event causes cellular metabolic reprogramming.
    1. Cell Biology

    Bax and Bak function as the outer membrane component of the mitochondrial permeability pore in regulating necrotic cell death in mice

    Jason Karch et al.
    The proteins Bax and Bak, which increase the permeability of the mitochondrial membrane during apoptosis, are also crucial for generating a mitochondrial membrane pore that is specifically involved in necrosis.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Apicomplexan-like parasites are polyphyletic and widely but selectively dependent on cryptic plastid organelles

    Jan Janouškovec et al.
    Apicomplexan-like parasites originated several times independently and many of them contain cryptic plastid organelles, which demonstrate that the parasites evolved from photosynthetic algae.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Sterol homeostasis requires regulated degradation of squalene monooxygenase by the ubiquitin ligase Doa10/Teb4

    Ombretta Foresti et al.
    Parallel branches of the ERAD pathway regulate sterol synthesis at multiple steps via feedback inhibition.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    The Drosophila HNF4 nuclear receptor promotes glucose-stimulated insulin secretion and mitochondrial function in adults

    William E Barry, Carl S Thummel
    Drosophila HNF4 directs a developmental switch at the onset of adulthood that suppresses diabetes by promoting mitochondrial function and supporting glucose-stimulated insulin secretion.
    1. Cell Biology

    The yeast H+-ATPase Pma1 promotes Rag/Gtr-dependent TORC1 activation in response to H+-coupled nutrient uptake

    Elie Saliba et al.
    The H+ influx coupled to nutrient uptake and the plasma membrane H+-ATPase are central actors of the activation of target of rapamycin complex 1 (TORC1) in budding yeast Saccharomyces cerevisiae..
    1. Immunology and Inflammation

    Long-term antigen exposure irreversibly modifies metabolic requirements for T cell function

    Marie Bettonville et al.
    Long-term exposure to recipient's alloantigens promotes major metabolic defects in T cells that are independent of PD-1-mediated regulation.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Prediction of enzymatic pathways by integrative pathway mapping

    Sara Calhoun et al.
    A computational method identifies the functions of orphan enzymes by organizing them into metabolic pathways; the prediction of a new l-gulonate catabolic pathway is experimentally tested and confirmed.

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