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Hum Genet. 1990 May;84(6):542-6.

Localization of the human oncogene SPI1 on chromosome 11, region p11.22.

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  • 1Laboratoire de Cytogénétique et de Génétique Oncologiques URA 126 CNRS, Institut Gustave Roussy, Villejuif, France.


Spi1 is an oncogene specifically activated in acute murine erythroleukemias induced by the Friend spleen focus forming virus (SFFV). Three probes were used for the chromosomal assignment of the human SPI1 oncogene: cDb1 and RaB2 correspond respectively to murine Spi1 and human SPI1 cDNA probes; C45a6B probe is a murine genomic DNA sequence located in the Spi1 5' region and is known as a major SFFV integration site in murine erythroleukemia cells. Somatic hybrid cells enabled cDb1 and RaB2 to be assigned to chromosome 11. The murine C45a6B probe, which is not included in the Spi1 gene, detected a homologous sequence on human chromosome 11. RaB2 was assigned to 11p11.22 by in situ hybridization. Three human genes known between 11p11 and 11p13 (FSHB, CAT, ACP2) were on murine chromosome 2. Therefore, the localization of human SPI1 on 11p11.22 was consistent with the assignment of the Spi1 oncogene to murine chromosome 2.

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