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    Cell. 1990 Feb 23;60(4):547-55.

    A new homeobox gene contributes the DNA binding domain of the t(1;19) translocation protein in pre-B ALL.

    Source

    Whitehead Institute for Biomedical Research, Nine Cambridge Center, Massachusetts 02142.

    Abstract

    It was previously shown that the chromosome 19 breakpoint of the t(1;19)(q23;p13.3) translocation, found in human pre-B cell acute lymphoblastic leukemias, is within the E2A transcription factor gene on chromosome 19. A cell line with this translocation contains two novel chimeric mRNAs, both with the same 5'E2A sequences but with different lengths of 3' sequence from a previously unrecognized gene dubbed prl, located on chromosome 1. The chimeric RNAs encode a protein that lacks 171 amino acids of E2A, including its DNA binding and dimerization motifs, but have instead a homeobox-related sequence from prl. Therefore, the production of a chimeric E2A-Prl protein may contribute to the acute lymphoblastic phenotype by directly altering the expression of genes normally responsive to the Prl homeoprotein.

    PMID:
    1967983
    [PubMed - indexed for MEDLINE]

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