Search Results - "Gingras, Alexandre R."
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Kindlin-3 recruitment to the plasma membrane precedes high-affinity β2-integrin and neutrophil arrest from rolling
Published in Blood (07-01-2021)“…Integrin-mediated neutrophil adhesion starts by arrest from rolling. Activation of integrins involves conformational changes from an inactive, bent…”
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The methyltransferase Ezh2 controls cell adhesion and migration through direct methylation of the extranuclear regulatory protein talin
Published in Nature immunology (01-05-2015)“…Ezh2 is a protein methylase that epigenetically modifies chromatin. Su and colleagues identify a cytoplasmic role for Ezh2 whereby it controls the…”
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Rap1 binding and a lipid-dependent helix in talin F1 domain promote integrin activation in tandem
Published in The Journal of cell biology (03-06-2019)“…Rap1 GTPases bind effectors, such as RIAM, to enable talin1 to induce integrin activation. In addition, Rap1 binds directly to the talin1 F0 domain (F0);…”
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RIAM and Vinculin Binding to Talin Are Mutually Exclusive and Regulate Adhesion Assembly and Turnover
Published in The Journal of biological chemistry (22-03-2013)“…Talin activates integrins, couples them to F-actin, and recruits vinculin to focal adhesions (FAs). Here, we report the structural characterization of the…”
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Transmission of integrin β7 transmembrane domain topology enables gut lymphoid tissue development
Published in The Journal of cell biology (02-04-2018)“…Integrin activation regulates adhesion, extracellular matrix assembly, and cell migration, thereby playing an indispensable role in development and in many…”
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Structural basis of the junctional anchorage of the cerebral cavernous malformations complex
Published in The Journal of cell biology (01-10-2012)“…The products of genes that cause cerebral cavernous malformations (CCM1/KRIT1, CCM2, and CCM3) physically interact. CCM1/KRIT1 links this complex to…”
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Structural studies on full-length talin1 reveal a compact auto-inhibited dimer: Implications for talin activation
Published in Journal of structural biology (01-10-2013)“…Talin is a large adaptor protein that activates integrins and couples them to cytoskeletal actin. Talin contains an N-terminal FERM (band 4.1, ezrin, radixin,…”
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IL-2 can signal via chemokine receptors to promote regulatory T cells’ suppressive function
Published in Cell reports (Cambridge) (29-08-2023)“…Canonical interleukin-2 (IL-2) signaling via the high-affinity CD25-containing IL-2 receptor-Janus kinase (JAK)1,3-signal transducer and activator of…”
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Structural basis of the C1q/C1s interaction and its central role in assembly of the C1 complex of complement activation
Published in Proceedings of the National Academy of Sciences - PNAS (20-08-2013)“…Complement component C1, the complex that initiates the classical pathway of complement activation, is a 790-kDa assembly formed from the target-recognition…”
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Structural Basis of Dimeric Rasip1 RA Domain Recognition of the Ras Subfamily of GTP-Binding Proteins
Published in Structure (London) (06-12-2016)“…Ras-interacting protein 1 (Rasip1) is an endothelial-specific Rap1 and Ras effector, important for vascular development and angiogenesis. Here, we report the…”
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The Crystal Structure of Pneumolysin at 2.0 Å Resolution Reveals the Molecular Packing of the Pre-pore Complex
Published in Scientific reports (03-09-2015)“…Pneumolysin is a cholesterol-dependent cytolysin (CDC) and virulence factor of Streptococcus pneumoniae . It kills cells by forming pores assembled from…”
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12
Talin contains a C-terminal calpain2 cleavage site important in focal adhesion dynamics
Published in PloS one (04-04-2012)“…Talin is a large (∼2540 residues) dimeric adaptor protein that associates with the integrin family of cell adhesion molecules in cell-extracellular matrix…”
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Heart of glass anchors Rasip1 at endothelial cell-cell junctions to support vascular integrity
Published in eLife (19-01-2016)“…Heart of Glass (HEG1), a transmembrane receptor, and Rasip1, an endothelial-specific Rap1-binding protein, are both essential for cardiovascular development…”
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The structure of the C-terminal actin-binding domain of talin
Published in The EMBO journal (23-01-2008)“…Talin is a large dimeric protein that couples integrins to cytoskeletal actin. Here, we report the structure of the C‐terminal actin‐binding domain of talin,…”
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Molecular basis of sugar recognition by collectin-K1 and the effects of mutations associated with 3MC syndrome
Published in BMC biology (17-04-2015)“…Collectin-K1 (CL-K1, or CL-11) is a multifunctional Ca(2+)-dependent lectin with roles in innate immunity, apoptosis and embryogenesis. It binds to…”
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A mechanism of Rap1-induced stabilization of endothelial cell--cell junctions
Published in Molecular biology of the cell (15-07-2011)“…Activation of Rap1 small GTPases stabilizes cell--cell junctions, and this activity requires Krev Interaction Trapped gene 1 (KRIT1). Loss of KRIT1 disrupts…”
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The Structure of an Interdomain Complex That Regulates Talin Activity
Published in The Journal of biological chemistry (29-05-2009)“…Talin is a large flexible rod-shaped protein that activates the integrin family of cell adhesion molecules and couples them to cytoskeletal actin. It exists in…”
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Structural Basis of Mannan-Binding Lectin Recognition by Its Associated Serine Protease MASP-1: Implications for Complement Activation
Published in Structure (London) (09-11-2011)“…Complement activation contributes directly to health and disease. It neutralizes pathogens and stimulates immune processes. Defects lead to immunodeficiency…”
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Biochemical and functional characterization of the interaction between pentraxin 3 and C1q
Published in European journal of immunology (01-02-2003)“…Pentraxin 3 (PTX3) is a recently characterized member of the pentraxin family of acute‐phase proteins produced during inflammation. Classical short pentraxins,…”
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Mapping and Consensus Sequence Identification for Multiple Vinculin Binding Sites within the Talin Rod
Published in The Journal of biological chemistry (04-11-2005)“…The interaction between the cytoskeletal proteins talin and vinculin plays a key role in integrin-mediated cell adhesion and migration. Three vinculin binding…”
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