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EMBO J. 1985 Oct;4(10):2561-8.

Structure of the chromosomal gene for granulocyte-macrophage colony stimulating factor: comparison of the mouse and human genes.


A cDNA clone that expresses granulocyte-macrophage colony stimulating factor (GM-CSF) activity in COS-7 cells has been isolated from a pcD library prepared from mRNA derived from concanavalin A-activated mouse helper T cell clones. Based on homology with the mouse GM-CSF cDNA sequence, the mouse GM-CSF gene was isolated. The human GM-CSF gene was also isolated based on homology with the human GM-CSF cDNA sequence. The nucleotide sequences determined for the genes and their flanking regions revealed that both the mouse and human GM-CSF genes are composed of three introns and four exons. The organization of the mouse and human GM-CSF genes are highly homologous and strong sequence homology between the two genes is found both in the coding and non-coding regions. A 'TATA'-like sequence was found 20-25 bp upstream from the transcription initiation site. In the 5'-flanking region, there is a highly homologous region extending 330 bp upstream of the putative TATA box. This sequence may play a role in regulation of expression of the GM-CSF gene. These structures are compared with those of different lymphokine genes and their regulatory regions.

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