Two Lyt-2 polypeptides arise from a single gene by alternative splicing patterns of mRNA.
The Lyt-2/3 molecule is a glycoprotein expressed on T lymphocytes and has classically been considered a marker for the cytotoxic/suppressor T cell subset. It has been postulated to be a receptor for class I major histocompatibility complex proteins. We have used a cDNA clone encoding the analogous human protein, Leu-2/T8, to isolate mouse cDNA clones, which were used as probes to isolate mouse genomic clones. By transfection we have shown that the mouse homologue of Leu-2/T8 is Lyt-2 and not Lyt-3. We have further demonstrated that two Lyt-2 polypeptide chains are encoded by a single gene and result from alternative modes of mRNA splicing. The nucleotide sequence of cDNA clones encoding each of these polypeptide chains has been determined and shows the difference between the two Lyt-2 polypeptide chains to be in the lengths of their cytoplasmic tails.[1]References
- Two Lyt-2 polypeptides arise from a single gene by alternative splicing patterns of mRNA. Zamoyska, R., Vollmer, A.C., Sizer, K.C., Liaw, C.W., Parnes, J.R. Cell (1985) [Pubmed]
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