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A novel TMPRSS3 missense mutation in a DFNB8/10 family prevents proteolytic activation of the protein

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dc.creator Sahin-Calapoglu, N
dc.creator Andreasen, D
dc.creator Caylan, R
dc.creator Fowler-Jaeger, N
dc.creator KALAY, ERSAN
dc.creator BRAİLLARD, BASTİEN
dc.creator Reymond, A
dc.creator Rossier, BC
dc.creator Karaguzel, A
dc.creator Antonarakis, SE
dc.creator Wattenhofer, M
dc.date 2005-09-30T21:00:00Z
dc.date.accessioned 2020-10-06T10:14:49Z
dc.date.available 2020-10-06T10:14:49Z
dc.identifier 597408a8-1072-4940-b071-572eb4db1f28
dc.identifier 10.1007/s00439-005-1332-x
dc.identifier https://avesis.sdu.edu.tr/publication/details/597408a8-1072-4940-b071-572eb4db1f28/oai
dc.identifier.uri http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/60827
dc.description Pathogenic mutations in TMPRSS3, which encodes a transmembrane serine protease, cause non-syndromic deafness DFNB8/10. Missense mutations map in the low density-lipoprotein receptor A (LDLRA), scavenger-receptor cysteine-rich (SRCR), and protease domains of the protein, indicating that all domains are important for its function. TMPRSS3 undergoes proteolytic cleavage and activates the ENaC sodium channel in a Xenopus oocyte model system. To assess the importance of this gene in non-syndromic childhood or congenital deafness in Turkey, we screened for mutations affected members of 25 unrelated Turkish families. The three families with the highest LOD score for linkage to chromosome 21q22.3 were shown to harbor P404L, R216L, or Q398X mutations, suggesting that mutations in TMPRSS3 are a considerable contributor to non-syndromic deafness in the Turkish population. The mutant TMPRSS3 harboring the novel R216L missense mutation within the predicted cleavage site of the protein fails to undergo proteolytic cleavage and is unable to activate ENaC, thus providing evidence that pre-cleavage of TMPRSS3 is mandatory for normal function.
dc.language eng
dc.rights info:eu-repo/semantics/closedAccess
dc.title A novel TMPRSS3 missense mutation in a DFNB8/10 family prevents proteolytic activation of the protein
dc.type info:eu-repo/semantics/article


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