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Four adult patients with the missense mutation L206W and a mild cystic fibrosis phenotype

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Abstract

We report molecular and clinical analyses in four unrelated patients with cystic fibrosis (CF) with compound heterozygosity for the L206W mutation in the cystic fibrosis transmembrane conductance regulator gene (CFTR). This uncommon missense mutation (frequency less than 1% in a sample of 336 CF chromosomes from Southern France) replaces a leucine by a tryptophan residue in the middle of the third transmembrane domain of CFTR. On the basis of the clinical features presented by the four patients, we postulate that the L206W might be associated with pancreatic sufficiency and residual transmembrane transport of chloride in lung.

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References

  • Claustres M, Laussei M, Desgeorges M, Giansily M, Culard JF, Razakatsara G, Demaille J (1993) 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. Hum Mol Genet 2:1209–1213

    Google Scholar 

  • Kiesewetter S, Macek M, Davis C, Curristin SM, Chu C-S, Graham C, Shrimpton AE, Cashman SM, Tsui L-C, Mickle J, Amos J, Highsmith WE, Shuber A, Witt DR, Crystal RG, Cutting GR (1993) A mutation in CFTR produces different phenotypes depending on chromosomal background. Nature Genet 5:274–278

    Google Scholar 

  • Kristidis P, Bozon D, Corey M, Markiewicz D, Rommens J, Tsui L-C, Durie P (1992) Genetic determination of exocrine pancreatic function in cystic fibrosis. Am J Hum Genet 50:1073–1080

    Google Scholar 

  • Morral N, Nunes V, Casals T, Chillon M, Gimenez J, Bertranpetit J, Estivill X (1993) Microsatellite haplotypes for cystic fibrosis: mutation frameworks and evolutionary tracers. Hum Mol Genet 2:1015–1022

    Google Scholar 

  • Riordan JR (1993) The cystic fibrosis transmembrane conductance regulator. Annu Rev Physiol 55:609–630

    Google Scholar 

  • Sheppard DN, Rich DP, Ostegaard RJ, Gregory RJ, Smith AE, Welsh MJ (1993) Mutations in CFTR associated with mild disease form Cl channels with altered pore properties. Nature 362:160–164

    Google Scholar 

  • Sheppard DN, Ostegaard LS, Rich DP, Welsh MJ (1994) The amino-terminal portion of CFTR forms a regulated Cl channel. Cell 76:1091–1098

    Google Scholar 

  • The Cystic Fibrosis Genetic Analysis Consortium (1994) Population variation of common cystic fibrosis mutations. Hum Mutat 4:167–177

    Google Scholar 

  • Tsui L-C (1992) Mutations and sequence variations detected in the cystic fibrosis transmembrane conductance regulator (CFTR) gene: a report from the cystic fibrosis genetic analysis consortium. Hum Mutat 1:197–203

    Google Scholar 

  • Tucker SJ, Tannahill D, Higgins CF (1992) Identification and developmental expression of the Xenopus laevis cystic fibrosis transmembrane conductance regulator gene. Hum Mol Genet 1:77–82

    Google Scholar 

  • Welsh MJ, Smith AE (1993) Molecular mechanisms of CFTR chloride channel dysfunction in cystic fibrosis. Cell 73:1251–1254

    Google Scholar 

  • Welsh MJ, Anderson MP, Rich DP, Berger HA, Denning GM, Ostegaard LS, Shoppard DN, Cheng SH, Gregory RJ, Smith AE (1992) Cystic fibrosis transmembrane conductance regulator: a chloride channel with novel regulation. Neuron 8:821–829

    Google Scholar 

  • Zielenski J, Rozmahel R, Bozon D, Kerem BS, Grzelczak Z, Riordan JR, Rommens J, Tsui L-C (1991) Genomic DNA sequence of the cystic fibrosis transmembrane conductance regulator (CFTR) gene. Genomics 10:214–228

    Google Scholar 

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Desgeorges, M., Rodier, M., Piot, M. et al. Four adult patients with the missense mutation L206W and a mild cystic fibrosis phenotype. Hum Genet 96, 717–720 (1995). https://doi.org/10.1007/BF00210305

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  • DOI: https://doi.org/10.1007/BF00210305

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