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    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structures of the scanning and engaged states of the mammalian SRP-ribosome complex

    Rebecca M Voorhees, Ramanujan S Hegde
    Structures of the signal recognition particle before and after it captures a transmembrane domain suggest how it chooses, engages, and shields its clients during membrane protein targeting to the endoplasmic reticulum.
    1. Structural Biology and Molecular Biophysics

    Subdued, a TMEM16 family Ca2+-activated Cl channel in Drosophila melanogaster with an unexpected role in host defense

    Xiu Ming Wong et al.
    A newly characterized calcium-activated chloride channel has been implicated in the immune system of Drosophila, shedding light on an enigmatic family of transmembrane proteins that are ubiquitous in nature.
    1. Microbiology and Infectious Disease

    MARCH8 inhibits viral infection by two different mechanisms

    Yanzhao Zhang et al.
    The host transmembrane protein MARCH8, previously known as an expression regulator of host proteins, is a powerful antiviral host factor with a potentially broad antiviral spectrum through two different mechanisms.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Sorting of a multi-subunit ubiquitin ligase complex in the endolysosome system

    Xi Yang et al.
    A single transmembrane E3 ligase complex can regulate protein ubiquitination at multiple organelles using interchangeable targeting subunits.
    1. Neuroscience

    Otoferlin acts as a Ca2+ sensor for vesicle fusion and vesicle pool replenishment at auditory hair cell ribbon synapses

    Nicolas Michalski et al.
    Targeted mutations in a Ca2+-binding site of otoferlin, a transmembrane protein of synaptic vesicles defective in a recessive form of deafness, reveal its Ca2+ sensor role both for vesicle fusion and vesicle pool replenishment.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Structural basis for the hijacking of endosomal sorting nexin proteins by Chlamydia trachomatis

    Blessy Paul et al.
    Chlamydia hijacks membrane trafficking proteins of the human host via the cytoplasmic domain of a secreted transmembrane protein.
    1. Cell Biology
    2. Immunology and Inflammation

    UNC93B1 mediates differential trafficking of endosomal TLRs

    Bettina L Lee et al.
    A transmembrane protein uses distinct mechanisms to regulate the movement of specific toll-like receptors-key immune system components involved in detecting pathogens-to their final locations inside cells.
    1. Cell Biology

    The unfolded protein response and endoplasmic reticulum protein targeting machineries converge on the stress sensor IRE1

    Diego Acosta-Alvear et al.
    The coordination of protein targeting to the endoplasmic reticulum and the unfolded protein response through the stress sensor IRE1 ensures quality control of the secreted and transmembrane proteomes.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Structural and mechanistic basis of the EMC-dependent biogenesis of distinct transmembrane clients

    Lakshmi E Miller-Vedam et al.
    Structure-function characterization of the EMC's cytoplasmic, transmembrane, and lumenal domains reveal features critical for terminal helix insertion and a specialized role for the lumenal domain in polytopic membrane protein biogenesis.
    1. Microbiology and Infectious Disease

    Structural basis for effector transmembrane domain recognition by type VI secretion system chaperones

    Shehryar Ahmad et al.
    A widespread family of chaperones functions to stabilize membrane protein effectors by mimicking transmembrane helical environments and promotes effector export by the bacterial type VI secretion system.