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  • Title: Characterization and localization of the TCL-1 oncogene product.
    Author: Fu TB, Virgilio L, Narducci MG, Facchiano A, Russo G, Croce CM.
    Journal: Cancer Res; 1994 Dec 15; 54(24):6297-301. PubMed ID: 7987816.
    Abstract:
    The TCL-1 gene maps at chromosome 14q32.1 and is activated in T cell leukemias and lymphomas by either chromosome translocations or inversions that juxtapose the TCL-1 gene to the alpha/delta or the beta locus of the T cell receptor. The open reading frame of the TCL-1 gene, coding for a protein of 114 amino acids, was expressed in bacteria and antisera were raised against it. The antibodies recognized the predicted TCL-1 M(r) 14,000 protein product in cells expressing TCL-1 mRNA. Cell fractionation experiments indicated that the TCL-1 protein is present in the microsomal fraction. These results were confirmed by confocal microscopy. The TCL-1 protein has considerable sequence similarities to the product of the MTCP-1 gene on chromosome Xq28, which is involved in T cell lympho-proliferative diseases. Thus, TCL-1 may represent a member of a novel family of genes involved in lymphoid proliferation and/or survival and in T cell malignancies.
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