Abstract
The CD45 protein is a transmembrane tyrosine phosphatase that is required for normal T cell receptor (TCR)-mediated signaling. A chimeric complementary DNA encoding the intracellular enzymatically active portion of murine CD45 preceded by a short amino-terminal sequence from p60 c- src was transfected into CD45- T cells. Expression of this chimeric protein corrected most of the TCR signaling abnormalities observed in the absence of CD45, including TCR-mediated enhancement of tyrosine kinase activity and Ca 2+ flux. Thus, the enzymatically active intracellular portion of CD45 is sufficient to allow TCR transmembrane signaling.
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Dates
Type | When |
---|---|
Created | 18 years, 10 months ago (Oct. 5, 2006, 7:05 p.m.) |
Deposited | 1 year, 7 months ago (Jan. 15, 2024, 6:27 a.m.) |
Indexed | 5 months ago (March 30, 2025, 3:33 a.m.) |
Issued | 32 years, 4 months ago (April 23, 1993) |
Published | 32 years, 4 months ago (April 23, 1993) |
Published Print | 32 years, 4 months ago (April 23, 1993) |
@article{Volarevi__1993, title={Regulation of TCR Signaling by CD45 Lacking Transmembrane and Extracellular Domains}, volume={260}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.8475386}, DOI={10.1126/science.8475386}, number={5107}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Volarević, Siniša and Niklinska, Barbara B. and Burns, Christopher M. and June, Carl H. and Weissman, Allan M. and Ashwell, Jonathan D.}, year={1993}, month=apr, pages={541–544} }