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Journal of Experimental Medicine, Vol 164, 458-473, Copyright © 1986 by Rockefeller University Press
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Y Bushkin, DN Posnett, B Pernis and CY Wang
The 38 kD molecule is noncovalently associated with beta 2 microglobulin (beta 2m)-free HLA heavy chain-like molecule, and thus forms a second heterodimer distinct from the clonotypic alpha/beta T cell receptor expressed by the same clone of leukemia cells. This second heterodimer (38 kD/HLA) is variably expressed and appears to be associated with the T3 molecule. We suggest, therefore, that it has a functional role in T cell activation.
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