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Isolation and sequence of L3T4 complementary DNA clones: expression in T cells and brain

Tourvielle, Béatrice and Gorman, Scott D. and Field, Elizabeth H. and Hunkapiller, Tim and Parnes, Jane R. (1986) Isolation and sequence of L3T4 complementary DNA clones: expression in T cells and brain. Science, 234 (4776). pp. 610-614. ISSN 0036-8075. doi:10.1126/science.3094146.

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T lymphocytes express on their surface not only a specific receptor for antigen and major histocompatibility complex proteins, but also a number of additional glycoproteins that are thought to play accessory roles in the processes of recognition and signal transduction. L3T4 is one such T-cell surface protein that is expressed on most mouse thymocytes and on mature mouse T cells that recognize class II (Ia) major histocompatibility complex proteins. Such cells are predominantly of the helper/inducer phenotype. In this study, complementary DNA clones encoding L3T4 were isolated and sequenced. The predicted protein sequence shows that L3T4 is a member of the immunoglobulin gene superfamily. It is encoded by a single gene that does not require rearrangement prior to expression. Although the protein has not previously been demonstrated on nonhematopoietic cells, two messenger RNA species specific for L3T4 are found in brain. The minor species comigrates with the L3T4 transcript in T cells, whereas the major species is 1 kilobase smaller.

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Additional Information:© 1986 American Association for the Advancement of Science. 6 June 1986; Accepted2 5 August 1986. We thank D. O'Neill for editorial assistance. Supported by NIH grants A111313 and GM34991; by the Ministere des Affaires Etrangeres-France, the Ligue Nationale Francaise contre le Cancer, and the Philippe Foundation (B.T.); by NCI postdoctoral fellowship 1 F32 CA07877-01 (S.D.G.); by a Bank of America-Giannini Foundation postdoctoral fellowship (E.H.F.); and by a John A. and George L. Hartford faculty fellowship award( J.R.P.)
Funding AgencyGrant Number
Ministere des Affaires EtrangeresUNSPECIFIED
Ligue Nationale contre le CancerUNSPECIFIED
Philippe FoundationUNSPECIFIED
National Cancer Institute1 F32 CA07877-01
Bank of America-Giannini FoundationUNSPECIFIED
John A. Hatford FoundationUNSPECIFIED
Issue or Number:4776
Record Number:CaltechAUTHORS:20150206-102152073
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Official Citation:Tourvieille, B., Gorman, S. D., Field, E. H., Hunkapiller, T., & Parnes. (1986). Isolation and sequence of L3T4 complementary DNA clones: expression in T cells and brain. Science, 234(4776), 610-614.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54475
Deposited On:06 Feb 2015 19:49
Last Modified:10 Nov 2021 20:34

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