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Novel missense mutations of TMPRSS3 in two consanguineous Tunisian families with non-syndromic autosomal recessive deafness

Masmoudi, S. and Antonarakis, S. E. and Schwede, T. and Ghorbel, A. M. and Gratri, M. and Pappasavas, M. P. and Drira, M. and Elgaied Boulila, A. and Wattenhofer, M. and Rossier, C. and Scott, H. S. and Ayadi, H. and Guipponi, M.. (2001) Novel missense mutations of TMPRSS3 in two consanguineous Tunisian families with non-syndromic autosomal recessive deafness. Human mutation, Vol. 18, no. 2. pp. 101-108.

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Official URL: http://edoc.unibas.ch/dok/A5259357

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Abstract

Recently the TMPRSS3 gene, which encodes a transmembrane serine protease, was found to be responsible for two non-syndromic recessive deafness loci located on human chromosome 21q22.3, DFNB8 and DFNB10. We found evidence for linkage to the DFNB8/10 locus in two unrelated consanguineous Tunisian families segregating congenital autosomal recessive sensorineural deafness. The audiometric tests showed a loss of hearing greater than 70 dB, in all affected individuals of both families. Mutation screening of TMPRSS3 revealed two novel missense mutations, W251C and P404L, altering highly conserved amino acids of the serine protease domain. Both mutations were not found in 200 control Tunisian chromosomes. The detection of naturally-occurring TMPRSS3 missense mutations in deafness families identifies functionally important amino acids. Comparative protein modeling of the TMPRSS3 protease domain predicted that W251C might lead to a structural rearrangement affecting the active site H257 and that P404L might alter the geometry of the active site loop and therefore affect the serine protease activity. Copyright 2001 Wiley-Liss, Inc.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Computational & Systems Biology > Bioinformatics (Schwede)
UniBasel Contributors:Schwede, Torsten
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Wiley-Liss
ISSN:1098-1004
Note:Publication type according to Uni Basel Research Database: Journal article
Last Modified:22 Mar 2012 14:24
Deposited On:22 Mar 2012 13:39

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