Coronavirus Spike Proteins in Viral Entry and Pathogenesis
نویسندگان
چکیده
منابع مشابه
Mechanisms of Coronavirus Cell Entry Mediated by the Viral Spike Protein
Coronaviruses are enveloped positive-stranded RNA viruses that replicate in the cytoplasm. To deliver their nucleocapsid into the host cell, they rely on the fusion of their envelope with the host cell membrane. The spike glycoprotein (S) mediates virus entry and is a primary determinant of cell tropism and pathogenesis. It is classified as a class I fusion protein, and is responsible for bindi...
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Severe acute respiratory syndrome-associated coronavirus (SARS-CoV) is a rapidly emerging pathogen with potentially serious consequences for public health. Here we describe conditions that result not only in the efficient expression of the SARS-CoV spike (S) protein on the surface of cells, but in its incorporation into lentiviral particles that can be used to transduce cells in an S glycoprote...
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Enveloped viruses enter cells by viral glycoprotein-mediated binding to host cells and subsequent fusion of virus and host cell membranes. For the coronaviruses, viral spike (S) proteins execute these cell entry functions. The S proteins are set apart from other viral and cellular membrane fusion proteins by their extensively palmitoylated membrane-associated tails. Palmitate adducts are genera...
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The interferon-inducible transmembrane (IFITM) proteins 1, 2 and 3 inhibit the host cell entry of several enveloped viruses, potentially by promoting the accumulation of cholesterol in endosomal compartments. IFITM3 is essential for control of influenza virus infection in mice and humans. In contrast, the role of IFITM proteins in coronavirus infection is less well defined. Employing a retrovir...
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The coronavirus spike protein is a multifunctional molecular machine that mediates coronavirus entry into host cells. It first binds to a receptor on the host cell surface through its S1 subunit and then fuses viral and host membranes through its S2 subunit. Two domains in S1 from different coronaviruses recognize a variety of host receptors, leading to viral attachment. The spike protein exist...
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ژورنال
عنوان ژورنال: Virology
سال: 2001
ISSN: 0042-6822
DOI: 10.1006/viro.2000.0757