122 results found
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Positively selected modifications in the pore of TbAQP2 allow pentamidine to enter Trypanosoma brucei

    Ali H Alghamdi et al.
    Study of TbAQP2 adaptations and substrate interactions shows how this aquaglyceroporin enables cellular entry of large antimicrobial agents in Trypanosoma brucei.
    1. Structural Biology and Molecular Biophysics

    Limited dishevelled/Axin oligomerization determines efficiency of Wnt/β-catenin signal transduction

    Wei Kan et al.
    In vitro and in cellulo characterization of oligomerization by the cytoplasmic Wnt effector dishevelled and its partner Axin provide new mechanistic principles for Wnt/β-catenin signaling.
    1. Evolutionary Biology
    2. Neuroscience

    A novel acidification mechanism for greatly enhanced oxygen supply to the fish retina

    Christian Damsgaard et al.
    A novel mode of oxygen delivery facilitated the adaptive evolution of vision in teleost fishes.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Extraction of active RhoGTPases by RhoGDI regulates spatiotemporal patterning of RhoGTPases

    Adriana E Golding et al.
    Through visualization of directly-labeled RhoGTPase both in vitro and in vivo, RhoGDI is found to spatiotemporally regulate RhoGTPase activity through the extraction of active RhoGTPase.
    1. Biochemistry and Chemical Biology
    2. Immunology and Inflammation

    PHLPP1 counter-regulates STAT1-mediated inflammatory signaling

    Ksenya Cohen Katsenelson et al.
    Uncovering a mechanism for how inflammatory signaling is opposed by a phosphatase identifies a potential druggable target to treat E. coli sepsis.
    1. Cell Biology

    Misfolded GPI-anchored proteins are escorted through the secretory pathway by ER-derived factors

    Eszter Zavodszky, Ramanujan S Hegde
    ER-resident chaperones and cargo receptors make excursions to the cell surface and endocytic compartments when they accompany misfolded clients to lysosomes for degradation.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Intrinsic cooperativity potentiates parallel cis-regulatory evolution

    Trevor R Sorrells et al.
    Cooperativity between two transcription regulators occurs through protein-protein interactions with a general transcription factor complex and potentiates the parallel evolution of their DNA binding sites.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structures reveal opening of the store-operated calcium channel Orai

    Xiaowei Hou et al.
    The structure of the calcium channel Orai in an open conformation reveals a dilated pore and gives insight into mechanisms of ion permeation and calcium selectivity.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    VivosX, a disulfide crosslinking method to capture site-specific, protein-protein interactions in yeast and human cells

    Chitra Mohan et al.
    An in vivo disulfide crosslinking assay shows preferential disassembly of nucleosomes with two H2A.Z histones by transcription machinery in yeast and conjugation to one or two ubiquitin moieties in human cells.
    1. Structural Biology and Molecular Biophysics

    Molecular basis of signaling specificity between GIRK channels and GPCRs

    Kouki K Touhara, Roderick MacKinnon
    A single kinetic step in the G protein activation cycle determines whether a G protein-coupled receptor activates G protein-gated K+ channels or not.

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