621 results found
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    An M protein coiled coil unfurls and exposes its hydrophobic core to capture LL-37

    Piotr Kolesinski, Kuei-Chen Wang ... Partho Ghosh
    Streptococcus pyogenes M87 protein unfurls its coiled coil to capture and neutralize the human antimicrobial peptide LL-37.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    Human LINE-1 retrotransposition requires a metastable coiled coil and a positively charged N-terminus in L1ORF1p

    Elena Khazina, Oliver Weichenrieder
    Human LINE-1 retrotransposition is found to critically depend on the rapidly evolving N-terminal sequence of the LINE-1 ORF1 protein and on the metastability of its coiled coil domain, indicating uncharacterized steps in LINE-1 retrotransposition.
    1. Structural Biology and Molecular Biophysics

    α/β coiled coils

    Marcus D Hartmann, Claudia T Mendler ... Birte Hernandez Alvarez
    Simple insertions switch α-helical coiled coils into a novel fibrous protein fold that is periodically interspersed with short β-strands.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The autophagy adaptor NDP52 and the FIP200 coiled-coil allosterically activate ULK1 complex membrane recruitment

    Xiaoshan Shi, Chunmei Chang ... James H Hurley
    Hydrogen-deuterium exchange, electron microscopy, and vesicle reconstitution show how binding of the autophagy adaptor NDP52 to the FIP200 subunit of the ULK1 complex triggers membrane binding in autophagy.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    The Caenorhabditis elegans protein SAS-5 forms large oligomeric assemblies critical for centriole formation

    Kacper B Rogala, Nicola J Dynes ... Ioannis Vakonakis
    SAS-5 forms oligomers, through a trimeric coiled coil and novel dimeric domain, that are necessary for centriolar localisation of SAS-5 and for centriole duplication.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    The homo-oligomerisation of both Sas-6 and Ana2 is required for efficient centriole assembly in flies

    Matthew A Cottee, Nadine Muschalik ... Susan M Lea
    The structure of the Ana2 Central Coiled-Coil Domain provides insight into how centriolar cartwheel components may be recruited and assembled, and indicates that cartwheel assembly involves more than just SAS-6 oligomerisation.
    1. Cell Biology

    The Uso1 globular head interacts with SNAREs to maintain viability even in the absence of the coiled-coil domain

    Ignacio Bravo-Plaza, Victor G Tagua ... Miguel A Peñalva
    Uso1 critically regulating traffic in the ER/Golgi interface is a coiled-coil protein traditionally regarded as a tether, but a forward genetic screen revealed that its essential role appears to involve its ability to interact with SNAREs.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Structural basis for the assembly of the mitotic motor Kinesin-5 into bipolar tetramers

    Jessica E Scholey, Stanley Nithianantham ... Jawdat Al-Bassam
    The Bipolar Assembly domain of kinesin-5 comprises an anti-parallel four-helix bundle, which explains how kinesin-5 subunits assemble into bipolar tetramers with two motile ends that transmit forces while crosslinking and sliding adjacent microtubules during mitosis.
    1. Biochemistry and Chemical Biology

    Regulatory coiled-coil domains promote head-to-head assemblies of AAA+ chaperones essential for tunable activity control

    Marta Carroni, Kamila B Franke ... Axel Mogk
    Head-to-head interactions of regulatory coiled-coil domains control activity of the central bacterial AAA+ protein ClpC by promoting formation of a reversible resting state.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Head-to-tail interactions of the coiled-coil domains regulate ClpB activity and cooperation with Hsp70 in protein disaggregation

    Marta Carroni, Eva Kummer ... Helen R Saibil
    Overcoming image-processing problems in the analysis of the ClpB chaperone provides a new structural model and regulatory mechanism, based on clear density for the coiled-coil domain and supported by various biochemical data.

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