235 results found
    1. Cell Biology
    2. Computational and Systems Biology

    Principles of cellular resource allocation revealed by condition-dependent proteome profiling

    Eyal Metzl-Raz et al.
    Steadily growing cells prepare for conditions that demand increased translation by producing excess ribosomes, at the expense of lower steady-state growth rate.
    1. Biochemistry and Chemical Biology

    Lack of activity of recombinant HIF prolyl hydroxylases (PHDs) on reported non-HIF substrates

    Matthew E Cockman et al.
    Assays using recombinant HIF prolyl hydroxylases did not support hydroxylation of more than 20 reported non-HIF substrates under conditions where robust HIF hydroxylation was observed.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Discovery of a small molecule that inhibits bacterial ribosome biogenesis

    Jonathan M Stokes et al.
    The anticonvulsant drug lamotrigine inhibits bacterial ribosome biogenesis and reveals an unexplored role for initiation factor 2 (IF2) in ribosome assembly.
    1. Cell Biology
    2. Evolutionary Biology

    TP53 copy number expansion is associated with the evolution of increased body size and an enhanced DNA damage response in elephants

    Michael Sulak et al.
    Elephants escaped enhanced cancer susceptibility by evolving more master tumor suppressor genes.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanism of Na+-dependent citrate transport from the structure of an asymmetrical CitS dimer

    David Wöhlert et al.
    The high-resolution x-ray structure of an asymmetrical SeCitS dimer, present in the inward- and outward-facing state, provides a complete mechanism of substrate and ion translocation in a sodium-dependent symporter.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Functional and structural characterization of an ECF-type ABC transporter for vitamin B12

    Joana A Santos et al.
    ECF-CbrT is a bacterial vitamin B12 transporter that is structurally different from the well-characterized transporter BtuCDF, yet has similar functional properties.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Abundant toxin-related genes in the genomes of beneficial symbionts from deep-sea hydrothermal vent mussels

    Lizbeth Sayavedra et al.
    Beneficial symbiotic bacteria encode an exceptional number of toxin-related genes that are all expressed by the symbionts in the host, supporting their key role in host-microbe interactions.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Structure of a pore-blocking toxin in complex with a eukaryotic voltage-dependent K+ channel

    Anirban Banerjee et al.
    Charybdotoxin, a toxin produced by scorpions, blocks a K+ channel by binding in a lock-and-key fashion to the mouth of the channel and presenting a lysine amino group, which serves as a K+ mimic in the selectivity filter.
    1. Neuroscience

    Estrogenic-dependent glutamatergic neurotransmission from kisspeptin neurons governs feeding circuits in females

    Jian Qiu et al.
    Estrogen increases hypothalamic arcuate kisspeptin neuronal excitability and glutamate release to coordinate autonomic functions for maximizing reproductive success.
    1. Structural Biology and Molecular Biophysics

    Structural insights into SETD3-mediated histidine methylation on β-actin

    Qiong Guo et al.
    Structural research, supplemented by biochemical experiments and enzymatic assays, unravels the sequence-dependent molecular mechanism by which SETD3 recognizes β-actin and methylates His73 of β-actin.

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