Browse our latest Biochemistry and Chemical Biology articles

Page 62 of 173
    1. Biochemistry and Chemical Biology

    In vitro reconstitution reveals major differences between human and bacterial cytochrome c synthases

    Molly C Sutherland, Deanna L Mendez ... Robert G Kranz
    Despite the known heme attachment motif (CXXCH) in all c-type cytochromes, attachment elements recognized by human and bacterial cytochrome c biogenesis pathways are distinct, providing clear targets for differential inhibitors.
    1. Biochemistry and Chemical Biology

    Protomer alignment modulates specificity of RNA substrate recognition by Ire1

    Weihan Li, Kelly Crotty ... Peter Walter
    Biochemical analysis and computational modeling reveal how cells mechanistically control the quality of their proteomes and demonstrate that the precise alignment of subunits in oligomeric complexes can profoundly affect enzymatic properties.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Molecular insights into substrate recognition and discrimination by the N-terminal domain of Lon AAA+ protease

    Shiou-Ru Tzeng, Yin-Chu Tseng ... Chung-I Chang
    The N-terminal domains enable Lon protease to discriminate and capture selected protein species for degradation by exposed hydrophobic patches and flexible linkages to the hexameric core complex.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Transient kinetic studies of the antiviral Drosophila Dicer-2 reveal roles of ATP in self–nonself discrimination

    Raushan K Singh, McKenzie Jonely ... Brenda L Bass
    A real-time, stopped-flow method, in combination with protein-induced fluorescence enhancement, Förster resonance energy transfer, and time-resolved fluorescence spectroscopy, reveals a kinetic framework for understanding Dicer as a complex molecular motor.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    NusG is an intrinsic transcription termination factor that stimulates motility and coordinates gene expression with NusA

    Zachary F Mandell, Reid T Oshiro ... Paul Babitzke
    The general transcription elongation factor NusG functions as an intrinsic termination factor in Bacillus subtilis and together with NusA coordinates global gene expression including the motility regulon.
    1. Biochemistry and Chemical Biology

    Virus Engineering: ORACLE reveals a bright future to fight bacteria

    Willow Coyote-Maestas, James S Fraser
    A new way to alter the genome of bacteriophages helps produce large libraries of variants, allowing these bacteria-killing viruses to be designed to target species harmful to human health.
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    1. Biochemistry and Chemical Biology

    Mapping the functional landscape of the receptor binding domain of T7 bacteriophage by deep mutational scanning

    Phil Huss, Anthony Meger ... Srivatsan Raman
    An unbiased mutational screen decodes the molecular basis of phage receptor interactions, identifies key functional regions determining activity and host range, and demonstrates the potential for engineering therapeutic phages.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Complementary biosensors reveal different G-protein signaling modes triggered by GPCRs and non-receptor activators

    Mikel Garcia-Marcos
    Heterotrimeric G-proteins can be switched on not only by G-protein-coupled receptors but also by cytoplasmic proteins, resulting in different signaling mechanisms in cells depending on the specific type of activator.
    1. Biochemistry and Chemical Biology

    Time-resolved phosphoproteomics reveals scaffolding and catalysis-responsive patterns of SHP2-dependent signaling

    Vidyasiri Vemulapalli, Lily A Chylek ... Stephen C Blacklow
    Monitoring SHP2 phosphoproteome dynamics identifies new substrate sites and sites protected from dephosphorylation by its SH2 domains, highlighting distinct scaffolding and catalytic activities in effecting a transmembrane signaling response.
    1. Biochemistry and Chemical Biology

    HPF1 and nucleosomes mediate a dramatic switch in activity of PARP1 from polymerase to hydrolase

    Johannes Rudolph, Genevieve Roberts ... Karolin Luger
    The polymerase activity of PARP1 is converted to hydrolase activity upon binding of Histone Parylation Factor 1 (HPF1) with nucleosome activators.