Browse our latest Biochemistry and Chemical Biology articles

Page 52 of 179
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Autoinhibition and regulation by phosphoinositides of ATP8B1, a human lipid flippase associated with intrahepatic cholestatic disorders

    Thibaud Dieudonné, Sara Abad Herrera ... Guillaume Lenoir
    Single particle cryo-electron microscopy associated with functional studies reveal a critical role of N- and C-terminal tails in the autoinhibition of the disease-related ATP8B1-CDC50A lipid flippase, the possible role of phosphorylation in autoinhibition relief, and strong activation by PI(3,4,5)P3.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Development and characterization of new tools for detecting poly(ADP-ribose) in vitro and in vivo

    Sridevi Challa, Keun W Ryu ... W Lee Kraus
    Poly(ADP-ribose) (PAR) Trackers (PAR-Ts) are optimized PAR sensors that allow the detection and quantification of PAR levels in extracts, living cells, and living tissues with high sensitivity, and with temporal and spatial precision, in many different experimental and biological systems.
    1. Biochemistry and Chemical Biology

    Inhibitory proteins block substrate access by occupying the active site cleft of Bacillus subtilis intramembrane protease SpoIVFB

    Sandra Olenic, Lim Heo ... Lee Kroos
    A novel mechanism of intramembrane protease regulation involves a protein blocking the active site of the enzyme.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Free spermidine evokes superoxide radicals that manifest toxicity

    Vineet Kumar, Rajesh Kumar Mishra ... Dipak Dutta
    Spermidine-mediated superoxide generation affects iron homeostasis in Escherichia coli.
    1. Biochemistry and Chemical Biology

    A cryptic K48 ubiquitin chain binding site on UCH37 is required for its role in proteasomal degradation

    Jiale Du, Sandor Babik ... Eric Strieter
    The proteasomal deubiquitinase UCHL5/UCH37 uses a face distinct from the canonical ubiquitin binding site to engage K48-linked ubiquitin chains and catalyze chain debranching.
    1. Biochemistry and Chemical Biology

    Effector membrane translocation biosensors reveal G protein and βarrestin coupling profiles of 100 therapeutically relevant GPCRs

    Charlotte Avet, Arturo Mancini ... Michel Bouvier
    Development, validation, and use of an effector membrane translocation biosensor platform reveals G protein coupling selectivity signatures for 100 GPCRs that range from remarkable selectivity to full promiscuity toward the different G protein subtypes.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Glutathione binding to the plant AtAtm3 transporter and implications for the conformational coupling of ABC transporters

    Chengcheng Fan, Douglas C Rees
    Multiple cryo-electron microscopy structures of a plant ABC transporter exporting glutathione derivatives captured a closed conformation proposed to enforce the export directionality, while a complex central to the coupling mechanism containing both glutathione and closed nucleotide binding domains remains elusive.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Co-aggregation and secondary nucleation in the life cycle of human prolactin/galanin functional amyloids

    Debdeep Chatterjee, Reeba S Jacob ... Samir K Maji
    Co-aggregation, amyloid formation, and unidirectional cross-seeding of prolactin and galanin for their efficient storage in secretory granules of pituitary and subsequent functional hormone release.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Agl24 is an ancient archaeal homolog of the eukaryotic N-glycan chitobiose synthesis enzymes

    Benjamin H Meyer, Panagiotis S Adam ... Helge C Dorfmueller
    The crenarchaeon Sulfolobus synthesizes the N-glycan core in the identical way as all Eukaryotes, which strengthens the hypothesis that the eukaryotic N-glycosylation is acquired from an ancient archaeon during eukaryogenesis.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Glypican-1 drives unconventional secretion of fibroblast growth factor 2

    Carola Sparn, Eleni Dimou ... Walter Nickel
    Identification of a heparan sulfate proteoglycan with a dedicated function in unconventional protein secretion reveals an intimate relationship between fibroblast growth factor 2 and Glypican-1 in cancer biology.