449 results found
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    Structural basis for Scc3-dependent cohesin recruitment to chromatin

    Yan Li et al.
    The Cohesin subunit Scc3 contains a hook-shaped domain that binds to DNA substrate, thus revealing that Cohesin-chromatin transactions are driven not only by topological interactions, but also by direct protein-DNA contacts.
    1. Chromosomes and Gene Expression

    Scc2 counteracts a Wapl-independent mechanism that releases cohesin from chromosomes during G1

    Madhusudhan Srinivasan et al.
    In G1 cells, Scc2 loads and maintains cohesin on chromosomes by counteracting a Wapl-independent releasing activity, which is neutralized in S phase by CDK1.
    1. Chromosomes and Gene Expression

    Scc2/Nipbl hops between chromosomal cohesin rings after loading

    James Rhodes et al.
    The cohesin loading factor Scc2/Nipbl interacts frequently with cohesin after the loading reaction in a manner consistent with a role in stimulating loop extrusion.
    1. Cancer Biology
    2. Cell Biology

    Palmitoylated SCP1 is targeted to the plasma membrane and negatively regulates angiogenesis

    Peng Liao et al.
    Palmitoylation recruits the phosphatase SCP1 to endothelial cell membranes where it negatively regulates Akt kinase activity, resulting in suppressed angiogenesis and decreased tumorigenesis.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Structural evidence for Scc4-dependent localization of cohesin loading

    Stephen M Hinshaw et al.
    Cohesin loading at centromeres depends on a conserved surface cluster of amino-acid residues on the cohesin loading protein, Scc4.
    1. Neuroscience

    Molecular pathway analysis towards understanding tissue vulnerability in spinocerebellar ataxia type 1

    Terri M Driessen et al.
    Unbiased transcriptomics reveals novel insights into the mechanisms that may contribute to regional neurodegeneration in SCA1, and other SCAs in general.
    1. Biochemistry and Chemical Biology

    Transport of DNA within cohesin involves clamping on top of engaged heads by Scc2 and entrapment within the ring by Scc3

    James E Collier et al.
    Rigorous biochemical and structural analyses reveal the precise topology of cohesin's association with DNA and suggest a mechanism for how DNA is transported inside the ring.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    The Sec1/Munc18 protein Vps45 holds the Qa-SNARE Tlg2 in an open conformation

    Travis J Eisemann et al.
    Whereas in a paradigmatic structure an SM protein chaperone clamps its client SNARE shut, a second structure demonstrates that an SM protein can also hold its SNARE open to promote assembly.
    1. Cell Biology
    2. Neuroscience

    Synaptojanin cooperates in vivo with endophilin through an unexpected mechanism

    Yongming Dong et al.
    The Sac1 phosphatase domain, rather than the proline-rich domain, plays an essential role in synaptojanin activity during endocytosis.
    1. Cell Biology

    SAC1 degrades its lipid substrate PtdIns4P in the endoplasmic reticulum to maintain a steep chemical gradient with donor membranes

    James P Zewe et al.
    SAC1 is unable to adopt an efficient "trans" mode of action in living cells.

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