© 1993 Oxford University Press
RESEARCH-ARTICLE |
Analysis of the 27 exons and flanking regions of the cystic fibrosis gene: 40 different mutations account for 91.2% of the mutant alleles in Southern France
Laboratoue de Biochimie Génétique, CNRS UPR-9008, CRBM U249 and GREPAM, Instrtut de Biologie, Bd Henn IV Montpellier, France
* To whom correspondence should be addressed
Received March 31, 1993; Revised June 4, 1993; Accepted June 4, 1993
In order to characterize the non-
F508 mutations that account for 36% of cystic fibrosis (CF) chromosomes In Southern France in a sample of 137 patients, we have systematically screened the entire coding region and adjacent sequences of the cystic fibrosis transmembrane conductance regulator (CFTR) gene by the single strand conformation polymorphism (SSCP) technique followed by direct sequencing of the mutant DNAs. We Identified 13 novel mutations (9 reported in this paper) and 4 novel rare nucleotide sequence variations. Forty different mutations Including
F508, located in 15 exons, account for only 91.2% of mutants In a population originating from Southern France, In contrast with a recent report on the Celtic population of Brittany demonstrating that 90% of mutations can be detected with only three mutations. We present a very large spectrum of different CF mutations Identified in a small geographical area.
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