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Cell. 1991 May 31;65(5):753-63.

Novel zinc finger gene implicated as myc collaborator by retrovirally accelerated lymphomagenesis in E mu-myc transgenic mice.

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Walter and Eliza Hall Institute of Medical Research, P.O. Royal Melbourne Hospital, Victoria, Australia.


To search for genes that can collaborate with myc in lymphomagenesis, we exploited retroviral insertional mutagenesis in E mu-myc transgenic mice. Moloney murine leukemia virus accelerated development of B lymphoid tumors. Three quarters contained a provirus within the known pim-1 or pim-2 loci, new loci bmi-1 and emi-1, or combinations of these. bmi-1 insertions predominated, occurring in half the tumors, and resulted in elevated bmi-1 mRNA levels. Significantly, the bmi-1 gene, which is expressed in diverse normal cells, encodes a Cys/His metal-binding motif (C3HC4) that resembles those in several DNA-binding proteins and defines a new category of zinc finger gene. Thus, myc-induced lymphomagenesis can entail the concerted action of several genes, including the presumptive nuclear regulator bmi-1.

[Indexed for MEDLINE]

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