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Gene December 30, 1994; 151 (1-2): 81-8.

Cloning of the Xenopus laevis cdk2 promoter and functional analysis in oocytes and during early development.

Olive M , Thézé N , Philippe M , Le Pennec JP , Lerivray H .

CDK2 (cyclin-dependent kinase 2) is a serine/threonine kinase which is involved in regulating S-phase entry in higher eukaryotes. To investigate the transcriptional control of this gene, a 13-kb Xenopus laevis genomic clone containing the 5'' flanking sequences was isolated. A 2.7-kb fragment containing the promoter region was sequenced and the transcription start point (tsp) was determined by primer extension. Several putative regulatory elements, such as the E2F-binding site, Y box and octamer-binding site, were localized in this region, but no TATA box was found. When fused to cat, a reporter gene encoding chloramphenicol acetyltransferase, the 5'' flanking sequences were shown to function in oocytes and an enhancer activity was found in this region. During early embryogenesis, cdk2 promoter activity was tested and de novo transcription was detected at the mid-blastula transition.

PubMed ID: 7828909
Article link: Gene

Species referenced: Xenopus laevis
Genes referenced: cat.2 cdk2