Characterization of a human gene inducible by alpha- and beta-interferons and its expression in mouse cells.
An intact interferon-inducible gene has been isolated from a cosmid library of human genomic DNA. The gene (designated 6-16) encodes a mRNA of approximately 1 kb which is induced well by alpha- and beta- but poorly by gamma-interferons. Genomic and cDNA sequences indicate that the gene contains five exons, and that the mRNA encodes a hydrophobic polypeptide of 130 amino acids with a putative NH2-terminal signal sequence. The 5' end has been identified by primer extension. The corresponding genomic DNA contains a TATA box 20 nucleotides upstream of the putative transcription initiation site. After transfection of the human genomic cosmid into mouse Ltk- cells, human 6-16 mRNA is expressed in response to mouse alpha- and beta- but not gamma-interferons with the same kinetics and dose-response as in the human cells. No such expression is observed in response to human interferons. It can be concluded that the human cosmid DNA contains all of the sequences necessary for alpha- and beta-interferon-induced gene expression and that the mechanisms governing such expression are conserved between murine and human cells.[1]References
- Characterization of a human gene inducible by alpha- and beta-interferons and its expression in mouse cells. Kelly, J.M., Porter, A.C., Chernajovsky, Y., Gilbert, C.S., Stark, G.R., Kerr, I.M. EMBO J. (1986) [Pubmed]
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