Browse our latest Biochemistry and Chemical Biology articles

Page 43 of 174
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    µ-Theraphotoxin Pn3a inhibition of CaV3.3 channels reveals a novel isoform-selective drug binding site

    Jeffrey R McArthur, Jierong Wen ... David J Adams
    The spider venom peptide Pn3a recognizes a pharmacophore unique to CaV3.3 amongst T-type calcium channels, underscoring its potential as a novel molecular tool for the study of CaV3.3-mediated currents in native cells.
    1. Biochemistry and Chemical Biology
    2. Medicine

    Structure-activity relationships of mitochondria-targeted tetrapeptide pharmacological compounds

    Wayne Mitchell, Jeffrey D Tamucci ... Nathan N Alder
    Sequence-variant analogs of mitochondria-targeted tetrapeptides have distinct patterns of membrane-bound conformations, effects on membrane properties, and abilities to protect mitochondria subject to stress, illuminating how side chain variation can be leveraged in the development of more effective therapeutic compounds.
    1. Biochemistry and Chemical Biology
    2. Genetics and Genomics

    Manganese is a physiologically relevant TORC1 activator in yeast and mammals

    Raffaele Nicastro, Hélène Gaillard ... Ralf Erik Wellinger
    Manganese drives the activation of the ‘target of rapamycin complex 1’ and uncouples sensing and response to nutrient availability.
    1. Biochemistry and Chemical Biology

    Global analysis of cytosine and adenine DNA modifications across the tree of life

    Sreejith Jayasree Varma, Enrica Calvani ... Markus Ralser
    By using mass spectrometry, we determined the global levels of various DNA modifications across species and tissues.
    1. Biochemistry and Chemical Biology
    2. Cancer Biology

    Metabolic requirement for GOT2 in pancreatic cancer depends on environmental context

    Samuel A Kerk, Lin Lin ... Costas A Lyssiotis
    Inhibition of GOT2 drives growth inhibitory reductive stress that can be rescued by electron acceptors in vitro, whereas GOT2 inhibition in endogenous or transplanted tumor models is tolerated without consequence, highlighting the importance of context when studying tumor metabolism.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Conformational fingerprinting of allosteric modulators in metabotropic glutamate receptor 2

    Brandon Wey-Hung Liauw, Arash Foroutan ... Reza Vafabakhsh
    A combination of single-molecule and in vivo FRET showed how drugs affect conformation of mGluR2 at different domains.
    1. Biochemistry and Chemical Biology

    Cryo-EM structures reveal that RFC recognizes both the 3′- and 5′-DNA ends to load PCNA onto gaps for DNA repair

    Fengwei Zheng, Roxana Georgescu ... Michael E O'Donnell
    Cryo-EM shows a 5’ DNA site on the RFC clamp loader, in addition to the 3’ site, and biochemical study shows the 5’ site facilitates PCNA loading onto gaps, consistent with genetics indicating the 5’ DNA site facilitates gap repair.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Active site geometry stabilization of a presenilin homolog by the lipid bilayer promotes intramembrane proteolysis

    Lukas P Feilen, Shu-Yu Chen ... Harald Steiner
    Biochemical studies in combination with computational modeling and molecular dynamics simulations reveal that the lipid bilayer promotes intramembrane proteolysis by stabilizing the enzyme-substrate complex and the protease active site.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Tyrosine phosphorylation tunes chemical and thermal sensitivity of TRPV2 ion channel

    Xiaoyi Mo, Peiyuan Pang ... Jing Yao
    Mg2+-dependent JAK1-mediated phosphorylation sensitizes TRPV2 activity and thermo-threshold, which is counterbalanced by PTPN1-mediated dephosphorylation, highlighting a role of phosphorylation homeostasis in setting the basal activity of TRPV2.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Antibacterial potency of type VI amidase effector toxins is dependent on substrate topology and cellular context

    Atanas Radkov, Anne L Sapiro ... Seemay Chou
    Distinct surfaces of an interbacterial competition cell wall toxin mediate interactions with different cellular binding partners, resulting in an inherent evolutionary trade-off across the toxin superfamily.