Skip to main content
Log in

Mutation p.E92K is the primary cause of cystic fibrosis in Chuvashes

  • Human Genetics
  • Published:
Russian Journal of Genetics Aims and scope Submit manuscript

Abstract

Molecular genetic study of the CFTR gene in cystic fibrosis patients from the Chuvash Republic is presented. We found linkage disequilibrium of the disease with 22-7-16-13 haplotype using intragenic markers. Major mutation p.E92K was revealed in chromosomes carrying this haplotype. The frequency of this mutation in Chuvash patients was 66.6%. Population study of the distribution of two mutations (p.E92K and F508del) of the CFTR gene revealed that their population frequency in heterozygous carriers was one per 37 subjects while calculated cystic fibrosis frequency in Chuvashia is one per 5420 newborns.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. De Boeck, K., Wilschanski, M., Castellani, C., et al., Cystic Fibrosis: Terminology and Diagnostic Algorithms, Thorax, 2006, vol. 61, pp. 627–35.

    Article  PubMed  Google Scholar 

  2. Riordan, J.R., Rommens, J.M., Kerem, B., et al., Identification of the Cystic Fibrosis Gene: Cloning and Characterization of Complementary DNA, Science, 1989, vol. 245, pp. 1066–1073.

    Article  PubMed  CAS  Google Scholar 

  3. Davies, J.C., Griesenbach, U., Geddes, D.M., and Alton, E.W.F.W., Cystic Fibrosis, in Encyclopedia of Life Sciences, 2005, pp. 1–8.

  4. www.genet.sickkids.on.ca/cftr/.

  5. Kerem, B. and Kerem, E., The Molecular Basis for Disease Variability in Cystic Fibrosis, Eur. J. Hum. Genet., 1996, vol. 4, pp. 65–73.

    PubMed  CAS  Google Scholar 

  6. Bobadilla, J.L., Macek, M., Jr., Fine, J.P., and Farrell, P.M., Cystic Fibrosis: A Worldwide Analysis of CFTR Mutations-Correlation with Incidence Data and Application to Screening, Hum. Mutat. Jun., 2002, vol. 19, no. 6, pp. 575–606.

    Article  CAS  Google Scholar 

  7. Petrova, N.V. and Ginter E.K., Ten-Year Experience in Molecular Genetic Diagnosis of Cystic Fibrosis in the Medical Genetic Research Center, Russian Academy of Medical Sciences, Pulmonologiya, 2001, vol. 11, no. 3, pp. 17–20.

    Google Scholar 

  8. Petrova, N.V., Molecular and Genetic, Clinical and Genotypic Characteristics of Cystic Fibrosis in Russian Populations, Extended Abstract of Doctoral (Biol.) Dissertation, Ìed. genet. nauch. tsentr Ross. àkad. Ìed. nauk, Moscow, 2009, p. 14.

    Google Scholar 

  9. Diaz, G.A., Gelb, B.D., Risch, N., et al., Gaucher Disease: The Origins of the Ashkenazi Jewish N370S and 84GG Acid Beta-Glucosidase Mutations, Am. J. Hum. Genet., 2000, vol. 66, pp. 1821–1832.

    Article  PubMed  CAS  Google Scholar 

  10. Nunes, V., Chill, M., Dfirk, T., et al., A New Missense Mutation (E92K) in the First Transmembrane Domain of the CFTR Gene Causes a Benign Cystic Fibrosis Phenotype, Hum. Mol. Genet., 1993, vol. 2, no. 1, pp. 79–80.

    Article  PubMed  CAS  Google Scholar 

  11. Stanke, F., Ballmann, M., Bronsveld, I., et al., Diversity of the Basic Defect of Homozygous CFTR Mutation Genotypes in Humans, J. Med. Genet., 2008, vol. 45, pp. 47–54.

    Article  PubMed  CAS  Google Scholar 

  12. Casals, T., Gimnez, J., Ramos, M.D., et al., Analysis of the CFTR Gene Confirms the High Genetic Heterogeneity of the Spanish Population: 43 Mutations Account for Only 78% of CF Chromosomes, Hum. Genet., 1994, vol. 93, pp. 447–451.

    PubMed  Google Scholar 

  13. Lu, Y., Xiong, X., Helm, A., et al., Co- and Posttranslational Translocation Mechanisms Direct Cystic Fibrosis Transmembrane Conductance Regulator N Terminus Transmembrane Assembly, J. Biol. Chem., 1998, vol. 273, pp. 568–576.

    Article  PubMed  CAS  Google Scholar 

  14. Cosson, P., Lankford, S.P., Bonifacino, J.S., and Klausner, R.D., Membrane Protein Association by Potential Intramembrane Charge Pairs, Nature, 1991, vol. 351 p, pp. 414–416.

    Article  Google Scholar 

  15. Hartmann, E., Rapoport, T.A., and Lodish, H.F., Predicting the Orientation of Eukaryotic Membrane-Spanning Proteins, Proc. Natl. Acad. Sci. U.S.A., 1989, vol. 86, pp. 5786–5790.

    Article  PubMed  CAS  Google Scholar 

  16. Parks, G.D. and Lamb, R.A., Topology of Eukaryotic Type II Membrane Proteins: Importance of N-Terminal Positively Charged Residues Flanking the Hydrophobic Domain, Cell, 1991, vol. 64, pp. 777–787.

    Article  PubMed  CAS  Google Scholar 

  17. Szczesna-Skorupa, E., Browne, N., Mead, D., and Kemper, B., Positive Charges at the NH2 Terminus Convert the Membrane-Anchor Signal Peptide of Cytochrome P-450 to a Secretory Signal Peptide, Proc. Natl. Acad. Sci. U.S.A., 1988, vol. 85, pp. 738–742.

    Article  PubMed  CAS  Google Scholar 

  18. Chen, M. and Zhang, J.T., Topogenesis of Cystic Fibrosis Transmembrane Conductance Regulator (CFTR): Regulation by the Amino Terminal Transmembrane Sequences, Biochemistry, 1999, vol. 38, pp. 5471–5477.

    Article  PubMed  CAS  Google Scholar 

  19. Akabas, M.H., Kaufmann, C., Cook, T.A., and Archdeacon, P., Amino Acid Residues Lining the Chloride Channel of the Cystic Fibrosis Transmembrane Conductance Regulator, J. Biol. Chem., 1994, vol. 269, pp. 14865–14868.

    PubMed  CAS  Google Scholar 

  20. Ivanov, V., Ethnic Geography of Chuvash People, Cheboksary: Chuvashskoe Knizhnoe Izd., 2005.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to A. A. Stepanova.

Additional information

Original Russian Text © A.A. Stepanova, A.V. Abrukova, E.N. Savaskina, A.V. Polyakov, 2012, published in Genetika, 2012, Vol. 48, No. 7, pp. 863–871.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Stepanova, A.A., Abrukova, A.V., Savaskina, E.N. et al. Mutation p.E92K is the primary cause of cystic fibrosis in Chuvashes. Russ J Genet 48, 731–737 (2012). https://doi.org/10.1134/S1022795412060166

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1022795412060166

Keywords

Navigation