alexa Characterization of the human cyclin-dependent kinase 2 gene. Promoter analysis and gene structure.


Journal of Cancer Science & Therapy

Author(s): Shiffman D, Brooks EE, Brooks AR, Chan CS, Milner PG

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Abstract Cyclin-dependent kinase 2 is a serine/threonine protein kinase essential for progression of the mammalian cell cycle from G1 to S phase. CDK2 mRNA has been shown to be induced by serum in several cultured cell types. Therefore, we set out to identify elements that regulate the transcription of the human CDK2 gene and to characterize its structure. This paper describes the cloning of approximately 2.4-kilobase pair genomic DNA fragment from the upstream region of the human CDK2 gene. This fragment contains five transcription initiation sites within a 72-nucleotide stretch. A 200-base pair sub-fragment that confers 70\% of maximal basal promoter activity was shown to contain two synergistically acting Sp1 sites. However, a much larger DNA fragment containing approximately 1.7 kilobase pairs of upstream sequence is required for induction of promoter activity following serum stimulation. The intron exon boundaries of seven exons in this gene were also identified, and this information will be useful for analyzing genomic abnormalities associated with CDK2.
This article was published in J Biol Chem and referenced in Journal of Cancer Science & Therapy

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