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- Publisher Website: 10.1016/S0006-291X(02)00891-4
- Scopus: eid_2-s2.0-0036384216
- PMID: 12176036
- WOS: WOS:000177747800027
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Article: Hearing loss: Frequency and functional studies of the most common connexin26 alleles
Title | Hearing loss: Frequency and functional studies of the most common connexin26 alleles |
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Authors | |
Keywords | Connexin26 Genetic deafness Mutations |
Issue Date | 2002 |
Publisher | Academic Press. The Journal's web site is located at http://www.elsevier.com/wps/find/journaldescription.cws_home/622790/description |
Citation | Biochemical And Biophysical Research Communications, 2002, v. 296 n. 3, p. 685-691 How to Cite? |
Abstract | Mutations in the GJB2 gene, encoding the gap-junction channel protein connexin 26, account for the majority of recessive forms and some of the dominant cases of deafness. Here, we report the frequency of GJB2 alleles in the Italian population affected by hearing loss and the functional analysis of six missense mutations. Genetic studies indicate that, apart from the common 35delG, only few additional mutations can be detected with a significant frequency in our population. Transfection of communication-incompetent HeLa cells with Cx26 missense mutations revealed three distinct classes of functional deficits in terms of protein expression, subcellular localisation and/or functional activity. Moreover, the M34T mutant acted as a dominant inhibitor of wild-type Cx26 channel activity when the two proteins were co-expressed in a manner mimicking a heterozygous genotype. These data support the hypothesis of a functional role for M34T as a dominant allele and represent a further step towards a complete understanding of the role of GJB2 in causing hearing loss. © 2002 Elsevier Science (USA). All rights reserved. |
Persistent Identifier | http://hdl.handle.net/10722/132709 |
ISSN | 2023 Impact Factor: 2.5 2023 SCImago Journal Rankings: 0.770 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | D'Andrea, P | en_HK |
dc.contributor.author | Veronesi, V | en_HK |
dc.contributor.author | Bicego, M | en_HK |
dc.contributor.author | Melchionda, S | en_HK |
dc.contributor.author | Zelante, L | en_HK |
dc.contributor.author | Di Iorio, E | en_HK |
dc.contributor.author | Bruzzone, R | en_HK |
dc.contributor.author | Gasparini, P | en_HK |
dc.date.accessioned | 2011-03-28T09:28:26Z | - |
dc.date.available | 2011-03-28T09:28:26Z | - |
dc.date.issued | 2002 | en_HK |
dc.identifier.citation | Biochemical And Biophysical Research Communications, 2002, v. 296 n. 3, p. 685-691 | en_HK |
dc.identifier.issn | 0006-291X | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/132709 | - |
dc.description.abstract | Mutations in the GJB2 gene, encoding the gap-junction channel protein connexin 26, account for the majority of recessive forms and some of the dominant cases of deafness. Here, we report the frequency of GJB2 alleles in the Italian population affected by hearing loss and the functional analysis of six missense mutations. Genetic studies indicate that, apart from the common 35delG, only few additional mutations can be detected with a significant frequency in our population. Transfection of communication-incompetent HeLa cells with Cx26 missense mutations revealed three distinct classes of functional deficits in terms of protein expression, subcellular localisation and/or functional activity. Moreover, the M34T mutant acted as a dominant inhibitor of wild-type Cx26 channel activity when the two proteins were co-expressed in a manner mimicking a heterozygous genotype. These data support the hypothesis of a functional role for M34T as a dominant allele and represent a further step towards a complete understanding of the role of GJB2 in causing hearing loss. © 2002 Elsevier Science (USA). All rights reserved. | en_HK |
dc.language | eng | en_US |
dc.publisher | Academic Press. The Journal's web site is located at http://www.elsevier.com/wps/find/journaldescription.cws_home/622790/description | en_HK |
dc.relation.ispartof | Biochemical and Biophysical Research Communications | en_HK |
dc.subject | Connexin26 | en_HK |
dc.subject | Genetic deafness | en_HK |
dc.subject | Mutations | en_HK |
dc.title | Hearing loss: Frequency and functional studies of the most common connexin26 alleles | en_HK |
dc.type | Article | en_HK |
dc.identifier.email | Bruzzone, R: bruzzone@hkucc.hku.hk | en_HK |
dc.identifier.authority | Bruzzone, R=rp01442 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1016/S0006-291X(02)00891-4 | en_HK |
dc.identifier.pmid | 12176036 | - |
dc.identifier.scopus | eid_2-s2.0-0036384216 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0036384216&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 296 | en_HK |
dc.identifier.issue | 3 | en_HK |
dc.identifier.spage | 685 | en_HK |
dc.identifier.epage | 691 | en_HK |
dc.identifier.isi | WOS:000177747800027 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | D'Andrea, P=7005979859 | en_HK |
dc.identifier.scopusauthorid | Veronesi, V=6701534503 | en_HK |
dc.identifier.scopusauthorid | Bicego, M=7004711890 | en_HK |
dc.identifier.scopusauthorid | Melchionda, S=6603966689 | en_HK |
dc.identifier.scopusauthorid | Zelante, L=7006328415 | en_HK |
dc.identifier.scopusauthorid | Di Iorio, E=8681862900 | en_HK |
dc.identifier.scopusauthorid | Bruzzone, R=7006793327 | en_HK |
dc.identifier.scopusauthorid | Gasparini, P=22634397400 | en_HK |
dc.identifier.issnl | 0006-291X | - |