Access

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 Vbold beta 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*

  1. *Division of Biology, California Institute of Technology, Pasadena, California 91125, USA
  2. Department of Pathology, Stanford Medical School, Palo Alto, California 94304, USA
  3. §Department of Pathology, Fox Chase Cancer Center, Philadelphia, Pennsylvania 19111, USA
  4. Permanent address: Department of Microbiology/Immunology, Northwestern University, Chicago, Illinois 60611, USA.
Top

Only 10 different Vbeta gene segments were found when the sequences of 15 variable (Vbeta) genes of the mouse T-cell receptor were examined. From this analysis we calculate that the total number of expressed Vbeta gene segments may be 21 or fewer, which makes the expressed germline Vbeta repertoire much smaller than that of the immunoglobulin heavy-chain or light-chain genes. We suggest that betachain somatic diversification is concentrated at the Vbeta-Dbeta-Jbeta junctions.