Browse our latest Biochemistry and Chemical Biology articles

Page 42 of 175
    1. Biochemistry and Chemical Biology
    2. Cancer Biology

    S6K1 phosphorylates Cdk1 and MSH6 to regulate DNA repair

    Adi Amar-Schwartz, Vered Ben Hur ... Rotem Karni
    Unbiased proteomics and molecular analysis revealed a new role for S6K1 in regulating DNA repair through the orchestrated phosphorylation of CDK1 and MSH6. The findings may explain why RPS6KB1 gene amplification contributed to breast cancer drug resistance.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Distinct architectural requirements for the parS centromeric sequence of the pSM19035 plasmid partition machinery

    Andrea Volante, Juan Carlos Alonso, Kiyoshi Mizuuchi
    Unique sequence feature requirements for the plasmid centromere pSM19035-parS for ParApSM-ATPase activation byribbon-helix-helix-ParBpSM, a non-CTPase centromere-binding protein, evince complex interaction gymnastics among the three reaction components necessary for plasmid partition, which is distinct from ParABS-systems involving helix-turn-helix-ParB-CTPases.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural insight on the mechanism of an electron-bifurcating [FeFe] hydrogenase

    Chris Furlan, Nipa Chongdar ... James A Birrell
    Cryo-EM and particle classification techniques reveal how the electron-bifurcating [FeFe] hydrogenase from Thermotoga maritima multimerizes to connect distant active sites and reveal different conformational states that enable catalysis.
    1. Biochemistry and Chemical Biology
    2. Immunology and Inflammation

    Mechanism of bisphosphonate-related osteonecrosis of the jaw (BRONJ) revealed by targeted removal of legacy bisphosphonate from jawbone using competing inert hydroxymethylene diphosphonate

    Hiroko Okawa, Takeru Kondo ... Ichiro Nishimura
    The targeted removal of legacy bisphosphonate from the jawbone by competitive equilibrium therapy not only elucidated the pathological mechanism of bisphosphonate-related osteonecrosis of the jaw (BRONJ) but also established a highly translatable therapeutic option for BRONJ.
    1. Biochemistry and Chemical Biology
    2. Cancer Biology

    Crosstalk between AML and stromal cells triggers acetate secretion through the metabolic rewiring of stromal cells

    Nuria Vilaplana-Lopera, Vincent Cuminetti ... Paloma Garcia
    Interplay between AML and stromal cells can initiate a mechanism involving gap junctions where ROS is transferred from cancer cells to stromal cells which then produce acetate which can in return be absorbed/utilised by the cancer cells.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure of Geobacter OmcZ filaments suggests extracellular cytochrome polymers evolved independently multiple times

    Fengbin Wang, Chi Ho Chan ... Daniel R Bond
    A cryo-EM structure of the bacterial OmcZ cytochrome filament provides evidence for the possibility that cytochrome polymers had multiple origins in bacteria.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Membrane-mediated dimerization potentiates PIP5K lipid kinase activity

    Scott D Hansen, Albert A Lee ... Jay T Groves
    Dimerization promotes nonlinear kinetics in PIP5K-dependent lipid phosphorylation reactions.
    1. Biochemistry and Chemical Biology

    DNA passes through cohesin’s hinge as well as its Smc3–kleisin interface

    James E Collier, Kim A Nasmyth
    By identifying cohesin's DNA entry gate(s) and through understanding the corresponding topology between the two the mechanism behind cohesin's activity is slowly deciphered and will aid in understanding how the SMC family at large functions.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Selenocyanate derived Se-incorporation into the nitrogenase Fe protein cluster

    Trixia M Buscagan, Jens T Kaiser, Douglas C Rees
    X-ray crystal structures capture ATP-dependent chalcogenide exchange from selenocyanate at the nitrogenase Fe protein cluster in the absence of the MoFe protein, an unexpected result as the Fe protein cluster is not traditionally perceived as a site of substrate binding.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Redox-controlled reorganization and flavin strain within the ribonucleotide reductase R2b–NrdI complex monitored by serial femtosecond crystallography

    Juliane John, Oskar Aurelius ... Martin Högbom
    The flavoprotein NrdI in class Ib ribonucleotide reductase controls superoxide generation and metal site oxidation by tuning the redox properties of its flavin cofactor via steric strain induced by the formation of the R2b–NrdI protein complex.