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Molecular analysis of protein interactions mediating the function of the cell surface protein CD8

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Abstract

The T cell coreceptor CD8 is a cell-surface glycoprotein expressed either as a disulfide-linked homodimer of two CD8α monomers, or a heterodimer of CD8α and CD8Β. These receptors interact with ligands, such as major histocompatibility complex (MHC) class I, on the outside of the cell, with proteins inside the cell, such as the tyrosine kinase p56lck, and possibly with proteins on the same cellsurface. The molecular details describing such protein interactions can shed light on how the proteins function and the functional differences between the two forms of CD8. Crystal structures, mutational analysis, affinity measurements, and other approaches are providing those details.

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Authors and Affiliations

  1. Department of Laboratory Medicine and Section of Immunobiology, Yale University School of Medicine, 06520, New Haven, CT

    Paula B. Kavathas

  2. Department of Genetics, Yale University School of Medicine, 333 Cedar St., 06520-8035, New Haven, CT

    Paula B. Kavathas

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  1. Lesley Devine
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  2. Paula B. Kavathas
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Devine, L., Kavathas, P.B. Molecular analysis of protein interactions mediating the function of the cell surface protein CD8. Immunol Res 19, 201–210 (1999). https://doi.org/10.1007/BF02786488

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