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Acute leukemia expressing the gamma gene product of the putative second T cell receptor

R González-Sarmiento, T W LeBien, J G Bradley

    The Journal of Clinical Investigation
    |April 1, 1987
    PubMed

    Early thymus-derived lymphocytes bearing the T gamma gene product in association with the CD3(T3) complex have recently been described. We report a unique case of human acute lymphoblastic leukemia with a CD2+, CD3+, CD4-, CD5+, CD7+, CD8-, WT31- phenotype. These cells were found to have T gamma gene rearrangement and T gamma transcripts in absence of T alpha or T beta rearrangement or transcripts. Immunoprecipitation studies with anti-CD3 antibodies showed a 43-kD protein associated with T3; this 43-kD protein is also precipitated with antiserum raised against synthetic peptides representing the constant region of the putative T gamma protein.

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