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Cell. 1984 Jun;37(2):537-47.

Subcellular localization of proteins encoded by oncogenes of avian myeloblastosis virus and avian leukemia virus E26 and by chicken c-myb gene.

Abstract

Analysis of the subcellular location of the proteins encoded by the oncogenes of avian myeloblastosis virus and avian leukemia virus E26 ( p45v -myb and p135gag -myb-ets, respectively) and by the chicken c-myb gene ( p75c -myb) shows that all three proteins are located in the nucleus. In AMV-infected (but not transformed) chicken fibroblasts p45v -myb also resides in the nucleus, indicating that a nuclear location of p45v -myb in these cells is not sufficient to achieve transformation. In AMV-transformed myeloblasts a small fraction of p45v -myb occupies an additional site in the perinuclear region of the cytoplasm. If the myeloblasts are caused to differentiate to macrophages, most of p45v -myb is found in the cytoplasm. This redistribution of p45v -myb within the cell may be responsible for reversion of the transformed phenotype.

PMID:
6327074
[PubMed - indexed for MEDLINE]
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