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Article
Nature 316, 517-523 (8 August 1985) | doi:10.1038/316517a0; Accepted 13 June 1985
The murine T-cell receptor uses a limited repertoire of expressed V
gene segments
Richard K. Barth*, Byung S. Kim*, †, Nancy C. Lan*, Tim Hunkapiller*, Nancy Sobieck*, Astar Winoto*, Howard Gershenfeld‡, Craig Okada‡, Dan Hansburg§, Irving L. Weissman‡ & Leroy Hood*
- *Division of Biology, California Institute of Technology, Pasadena, California 91125, USA
- ‡Department of Pathology, Stanford Medical School, Palo Alto, California 94304, USA
- §Department of Pathology, Fox Chase Cancer Center, Philadelphia, Pennsylvania 19111, USA
- †Permanent address: Department of Microbiology/Immunology, Northwestern University, Chicago, Illinois 60611, USA.
Abstract
Only 10 different V
gene segments were found when the sequences of 15 variable (V
) genes of the mouse T-cell receptor were examined. From this analysis we calculate that the total number of expressed V
gene segments may be 21 or fewer, which makes the expressed germline V
repertoire much smaller than that of the immunoglobulin heavy-chain or light-chain genes. We suggest that
chain somatic diversification is concentrated at the V
-D
-J
junctions.
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