1,592 results found
    1. Cell Biology
    2. Immunology and Inflammation

    TAPBPR alters MHC class I peptide presentation by functioning as a peptide exchange catalyst

    Clemens Hermann et al.
    We reveal TAPBPR is a peptide exchange catalyst which restricts the peptide repertoire presented by MHC I on cells, a finding which has important implications for all aspects of immune recognition.
    1. Cell Biology
    2. Immunology and Inflammation

    TAPBPR bridges UDP-glucose:glycoprotein glucosyltransferase 1 onto MHC class I to provide quality control in the antigen presentation pathway

    Andreas Neerincx et al.
    The recently discovered peptide editor TAPBPR binds to UDP-glucose:glycoprotein glucosyltransferase 1 to provide quality control in the antigen presentation pathway by facilitating the reglucosylation of the glycan on MHC class I molecules.
    1. Immunology and Inflammation

    Expression levels of MHC class I molecules are inversely correlated with promiscuity of peptide binding

    Paul E Chappell et al.
    The number of different peptides presented by major histocompatibility complex class I molecules to the immune system's T lymphocytes is inversely correlated with cell surface expression and is strongly associated with the response to infectious disease.
    1. Immunology and Inflammation

    TAPBPR mediates peptide dissociation from MHC class I using a leucine lever

    F Tudor Ilca et al.
    Immunopeptidomics in combination with novel cell-based assays that assess peptide exchange reveal a critical role for the K22-D35 loop of TAPBPR in mediating peptide dissociation and peptide selection on MHC I.
    1. Cell Biology
    2. Immunology and Inflammation

    A two-hybrid antibody micropattern assay reveals specific in cis interactions of MHC I heavy chains at the cell surface

    Cindy Dirscherl et al.
    A generally applicable two-hybrid assay demonstrates that MHC class I heavy chains devoid of beta-2 microglobulin associate within and across allotypes, with implications for endocytosis and autoimmunity.
    1. Immunology and Inflammation

    Tumors attenuating the mitochondrial activity in T cells escape from PD-1 blockade therapy

    Alok Kumar et al.
    Downregulation of mitochondrial activity by immunosuppressive tumor-derived soluble factors leads to systemic unresponsiveness to the PD-1 blockade therapy.
    1. Biochemistry and Chemical Biology
    2. Immunology and Inflammation

    A loop structure allows TAPBPR to exert its dual function as MHC I chaperone and peptide editor

    Lina Sagert et al.
    A dedicated structural element facilitates chaperone and antigenic peptide selector function of TAP-associated glycoprotein, a major quality assurance auditor in adaptive immunity.
    1. Immunology and Inflammation

    Functionally diverse human T cells recognize non-microbial antigens presented by MR1

    Marco Lepore et al.
    MR1T cells are human polyclonal T cells endowed with diverse effector functions in response to endogenous antigens presented by MHC-class 1-related molecule, MR1.
    1. Computational and Systems Biology

    Essential metabolism for a minimal cell

    Marian Breuer et al.
    A near-complete flux balance analysis model of a minimal cell demonstrates the high essentiality of its metabolic genes, agrees well with experimental essentiality data and suggests some further gene removals.
    1. Cancer Biology
    2. Immunology and Inflammation

    The newly-arisen Devil facial tumour disease 2 (DFT2) reveals a mechanism for the emergence of a contagious cancer

    Alison Caldwell et al.
    A recently discovered contagious cancer in the Tasmanian devil has the potential to become widespread in the population due to the loss of histocompatibility antigens that are allogeneic to its hosts.

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