93 results found
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Deep evolutionary analysis reveals the design principles of fold A glycosyltransferases

    Rahil Taujale et al.
    Deep mining of GT-A fold sequences provides an evolutionary framework for investigating complex relationships connecting GT-A fold sequence, structure, function and regulation.
    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. Evolutionary Biology
    2. Genetics and Genomics

    Predicted glycosyltransferases promote development and prevent spurious cell clumping in the choanoflagellate S. rosetta

    Laura A Wetzel et al.
    A genetic screen reveals that two predicted glycosyltransferases promote rosette development and prevent cell clumping in one of the closest living relatives of animals, the choanoflagellate S. rosetta.
    1. Microbiology and Infectious Disease

    Specificity in glycosylation of multiple flagellins by the modular and cell cycle regulated glycosyltransferase FlmG

    Silvia Ardissone et al.
    Glycosylation of flagellins with pseudaminic acid in the bacterial cytoplasm governed by an unknown type of modular glycosyltransferase harboring an N-terminal substrate binding domain and a C-terminal glycosyltransferase domain.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    A structural mechanism for bacterial autotransporter glycosylation by a dodecameric heptosyltransferase family

    Qing Yao et al.
    Protein heptosyltransferases modify a group of bacterial autotransporters for virulence function and employ a novel structural mechanism for the processive hyperglycosylation of the autotransporter.
    1. Biochemistry and Chemical Biology

    The glucuronyltransferase B4GAT1 is required for initiation of LARGE-mediated α-dystroglycan functional glycosylation

    Tobias Willer et al.
    Post-phosphoryl modification of α-dystroglycan requires the glucuronyltransferase B4GAT1; this enzyme synthesizes the acceptor glycan that serves as a primer for the glycosyltransferase LARGE to synthesize the laminin-binding glycan.
    1. Microbiology and Infectious Disease

    Factors essential for L,D-transpeptidase-mediated peptidoglycan cross-linking and β-lactam resistance in Escherichia coli

    Jean-Emmanuel Hugonnet et al.
    Production of the L,D-transpeptidase YcbB and elevated synthesis of the (p)ppGpp alarmone reveals a new mode of peptidoglycan polymerization that bypasses the D,D-transpeptidase activity of PBPs and leads to broad-spectrum β-lactam resistance in Escherichia coli.
    1. Biochemistry and Chemical Biology

    B4GAT1 is the priming enzyme for the LARGE-dependent functional glycosylation of α-dystroglycan

    Jeremy L Praissman et al.
    The correct enzymatic activity of a previously misnamed enzyme is defined, placing the enzyme upstream of LARGE in building functional O-mannose structures on α-dystroglycan that are disrupted in multiple forms of congenital muscular dystrophy.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Bacterial death and TRADD-N domains help define novel apoptosis and immunity mechanisms shared by prokaryotes and metazoans

    Gurmeet Kaur et al.
    Prokaryotic TRADD-N and Death-like adaptor domains in diverse predicted apoptosis and immune systems from multicellular prokaryotes and metazoans indicate the common origin of key apoptosis mechanisms required for the stabilization of multicellularity.
    1. Cell Biology

    Quantitative glycoproteomics reveals cellular substrate selectivity of the ER protein quality control sensors UGGT1 and UGGT2

    Benjamin M Adams et al.
    Natural substrates of the central endoplasmic reticulum quality control glycoprotein sensors UDP-glucose:glycoproteinglucosyltransferase (UGGT)1 and UGGT2 were identified using a glycoproteomics approach and the role for their modification was explored.

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