1,175 results found
    1. Biochemistry and Chemical Biology
    2. Cancer Biology

    Cysteine dioxygenase 1 is a metabolic liability for non-small cell lung cancer

    Yun Pyo Kang et al.
    By increasing intracellular cysteine levels, NRF2 engages a tumor suppressive metabolic pathway mediated by cysteine dioxygenase 1.
    1. Cancer Biology

    Environmental cystine drives glutamine anaplerosis and sensitizes cancer cells to glutaminase inhibition

    Alexander Muir et al.
    Cell culture models widely used in cancer research do not reflect metabolism in tumors; by altering culture systems to better model tumor metabolism we find that environmental cystine promotes tumor glutamine metabolism.
    1. Cell Biology

    Pharmacological inhibition of cystine–glutamate exchange induces endoplasmic reticulum stress and ferroptosis

    Scott J Dixon et al.
    Erastin and sorafenib inhibit system xc- and induce ER stress, suggesting these may be useful tools for probing the functions of system xc- and its role in inducing ER stress and ferroptosis.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure and function of the Smoothened extracellular domain in vertebrate Hedgehog signaling

    Sigrid Nachtergaele et al.
    A cysteine-rich domain within the Smoothened receptor may represent a novel therapeutic target for cancers caused by abnormal functioning of the Hedgehog signaling pathway.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Exploring structural dynamics of a membrane protein by combining bioorthogonal chemistry and cysteine mutagenesis

    Kanchan Gupta et al.
    A facile method is implemented to modify membrane proteins with biophysical reporters using cysteine-independent approaches in live cells.
    1. Biochemistry and Chemical Biology

    Chemical genetics and proteome-wide site mapping reveal cysteine MARylation by PARP-7 on immune-relevant protein targets

    Kelsie M Rodriguez et al.
    A combined chemical genetics, proximity labeling, and ADP-ribose site mapping approach shows that PARP-7 mono-ADP-ribosylates immune-relevant proteins on cysteine amino acids.
    1. Structural Biology and Molecular Biophysics
    2. Developmental Biology

    Structure and functional properties of Norrin mimic Wnt for signalling with Frizzled4, Lrp5/6, and proteoglycan

    Tao-Hsin Chang et al.
    The crystal structure of Norrie Disease Protein in complex with the extracellular cysteine-rich domain of Frizzled4 receptor and sucrose octasulfate reveals binding sites for Frizzled4, low density lipoprotein receptor related protein 5/6, and proteoglycan.
    1. Plant Biology

    The chloroplast 2-cysteine peroxiredoxin functions as thioredoxin oxidase in redox regulation of chloroplast metabolism

    Mohamad-Javad Vaseghi et al.
    The chloroplast 2-cysteine peroxiredoxin is central player and missing link in the chloroplast thiol-disulfide redox regulatory network, and participates in oxidative inactivation of reductively activated enzymes in photosynthesis.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Peroxiredoxin promotes longevity and H2O2-resistance in yeast through redox-modulation of protein kinase A

    Friederike Roger et al.
    The major cytosolic yeast peroxiredoxin Tsa1 controls aging and H2O2-resistance by inhibiting protein kinase A through a conserved cysteine in the catalytic subunit activation loop and not by scavenging H2O2.
    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.

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