The cellular homologue of the transforming gene of SKV avian retrovirus maps to human chromosome region 1q22→q24

R. S K Chaganti, I. Balazs, S. C. Jhanwar, V. V. Murty, P. R. Koduru, K. H. Grzeschik, E. Stavnezer

Research output: Contribution to journalArticle

44 Scopus citations

Abstract

We report the chromosomal localization of the cellular oncogene SKI, the putative oncogene of the Sloan-Kettering viruses (SKVs), a group of transforming retroviruses that had been isolated from chicken embryo cells infected with the avian leukosis virus tdB77. Southern blot analysis of DNA from mouse x human somatic cell hybrids with the v-SKI probe established synteny with chromosome 1, but excluding the region 1pter→q21. In situ hybridization of the same probe both to human spermatocyte pachytene and lymphocyte metaphase chromosomes enabled precise localization of the gene to the region 1q22→q24, a region that frequently is involved in translocations and other rearrangements in diverse human tumor types. In situ hybridization studies of metaphase spreads from a small noncleaved cell lymphoma that exhibited a t(1;14)(q21;q32) translocation showed that SKI translocates to the der(14) chromosome. Cytogenetic analysis of 65 prospectively ascertained non-Hodgkin's lymphomas revealed that the SKI region undergoes nonrandom breakage leading to translocations. Further analysis of the chromosome breaks in this group of lymphomas suggested that those involving the SKI site probably are of importance in tumor progression.

Original languageEnglish (US)
Pages (from-to)181-186
Number of pages6
JournalCytogenetics and Cell Genetics
Volume43
Issue number3-4
StatePublished - Dec 1 1986

ASJC Scopus subject areas

  • Genetics
  • Cell Biology

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