Identification of genetic polymorphisms through comparative DNA sequence analysis on the K-ras gene: implications for lung tumor susceptibility.

TitleIdentification of genetic polymorphisms through comparative DNA sequence analysis on the K-ras gene: implications for lung tumor susceptibility.
Publication TypeJournal Article
Year of Publication2005
AuthorsWang, M, Wang, Y, You, M
JournalExp Lung Res
Volume31
Issue2
Pagination165-77
Date Published2005 Mar
ISSN0190-2148
KeywordsAnimals, Base Sequence, Binding Sites, Conserved Sequence, DNA, Neoplasm, Gene Deletion, Genes, ras, Genetic Predisposition to Disease, Humans, Lung Neoplasms, Mice, Mice, Inbred Strains, Molecular Sequence Data, Polymorphism, Genetic, Promoter Regions, Genetic, Rats, Sequence Homology, Nucleic Acid, Transcription Factors
Abstract

In the present study, the authors performed a comparative sequence analysis of the K-ras gene. By comparing sequences from different mouse inbred strains, the authors have identified new nucleotide polymorphisms in the noncoding regions of mouse K-ras gene. They have also identified noncoding DNA segments evolutionarily conserved among the human, mouse, and rat. Computational analysis for transcription factor binding sites suggests that these polymorphic and conserved DNA sequences harbor potential cis-regulatory elements, which may contribute to the transcriptional regulation of the K-ras gene. Further studies on these potential regulatory sites may help to elucidate the fundamental mechanism underlying allele-specific activation and expression of K-ras gene in hybrid mouse lung tumors, which determines lung tumor susceptibility in mice.

DOI10.1080/01902140490495543
Alternate JournalExp. Lung Res.
PubMed ID15824019
Grant ListR01CA099147 / CA / NCI NIH HHS / United States
R01CA58554 / CA / NCI NIH HHS / United States