Polymorphisms in the promoter region of the WAF1/CIP1 gene

Liloglou,T; Risk,J; Field,J

doi:10.3892/ijo.9.3.559

September 1996 Volume 9 Issue 3

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September 1996 Volume 9 Issue 3

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Article

Polymorphisms in the promoter region of the WAF1/CIP1 gene

Authors:
- T Liloglou
- J Risk
- J Field
View Affiliations / Copyright

Affiliations: UNIV LIVERPOOL,DEPT CLIN DENT SCI,MOL GENET & ONCOL GRP,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND.
Pages: 559-562
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Published online on: September 1, 1996

https://doi.org/10.3892/ijo.9.3.559
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Abstract

The WAF1/CIP1 gene encodes p21(waf1), a CDK inhibitor which is implicated in cell growth arrest and differentiation, and is activated by wild-type p53. We examined the presence of mutations in a part of the 5' flanking region which is known to contain p53 binding sites, in 50 cases of lung cancer and 11 individuals with no history of cancer. Polymorphisms were identified in the region close to: but not within, the p53 binding sites. The first polymorphism occurred at nucleotide -2203 prior to the transcription start site, four base pairs upstream of a p53 binding site and created an MscI restriction site. The second polymorphism was more complex and included four sites (nucleotides -1463, -1526, -1533 and -1594). Two patterns (alleles) were identified for this region. These polymorphisms were observed at similar percentages in DNAs from lung cancer patients and individuals who had no history of cancer. A computer transcription factor motif analysis showed that these polymorphic sites are homologous (>85%) to consensus sequences of transcription factors such as ETS-1, Elk-l, GATA-1 and AP4 but their role in the regulation of p21(waf1) expression is still unclear. This is the first report of polymorphisms in this region of the WAF1/CIP1 promoter.

Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Polymorphisms in the promoter region of the WAF1/CIP1 gene

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Abstract

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