Abstract
T cells recognize small fragments of microorganisms (antigens) on the surface of other cells using T cell antigen receptors. The mechanism by which these receptors signal into T cells is controversial, but two recent studies provide important new clues.
MeSH terms
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Antigens / immunology*
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Antigens / metabolism
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Humans
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Immunity, Cellular / immunology*
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Major Histocompatibility Complex / immunology
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Models, Immunological*
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Receptors, Antigen, T-Cell / metabolism*
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Signal Transduction / immunology*
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T-Lymphocytes / immunology*
Substances
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Antigens
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Receptors, Antigen, T-Cell