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Cell. 1988 Sep 9;54(6):787-93.

Genes specifically expressed at growth arrest of mammalian cells.

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European Molecular Biology Laboratory, Heidelberg, Federal Republic of Germany.


A subtraction cDNA library enriched for RNA sequences preferentially expressed in growth-arrested cells was prepared. Six cDNA clones were identified, varying in abundance from 2% to 0.0002% of the library and in size from 0.8 to 10 kb. The corresponding mRNAs are downregulated with different kinetics upon induction of growth by serum. The kinetics of induction after serum starvation and density-dependent inhibition of two of these growth-arrest-specific (gas) genes were investigated in more detail. Two cell lines transformed by viral onc genes did not express the two gas genes. The full-length cDNA for one gene has been sequenced and the protein product preliminarily characterized by in vitro translation.

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