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Transcriptional con...
Transcriptional control of SLC26A4 is involved in Pendred syndrome and nonsyndromic enlargement of vestibular aqueduct (DFNB4).
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Yang, Tao (författare)
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- Vidarsson, Hilmar, 1970 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk genetik och klinisk genetik,Institute of Biomedicine, Department of Medical and Clinical Genetics
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- Rodrigo Blomqvist, Sandra, 1974 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk genetik och klinisk genetik,Institute of Biomedicine, Department of Medical and Clinical Genetics
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Rosengren, Sally S (författare)
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- Enerbäck, Sven, 1958 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk genetik och klinisk genetik,Institute of Biomedicine, Department of Medical and Clinical Genetics
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Smith, Richard J H (författare)
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(creator_code:org_t)
- Elsevier BV, 2007
- 2007
- Engelska.
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Ingår i: American journal of human genetics. - : Elsevier BV. - 0002-9297. ; 80:6, s. 1055-63
- Relaterad länk:
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http://www.cell.com/...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Although recessive mutations in the anion transporter gene SLC26A4 are known to be responsible for Pendred syndrome (PS) and nonsyndromic hearing loss associated with enlarged vestibular aqueduct (EVA), also known as "DFNB4," a large percentage of patients with this phenotype lack mutations in the SLC26A4 coding region in one or both alleles. We have identified and characterized a key transcriptional regulatory element in the SLC26A4 promoter that binds FOXI1, a transcriptional activator of SLC26A4. In nine patients with PS or nonsyndromic EVA, a novel c.-103T-->C mutation in this regulatory element interferes with FOXI1 binding and completely abolishes FOXI1-mediated transcriptional activation. We have also identified six patients with mutations in FOXI1 that compromise its ability to activate SLC26A4 transcription. In one family, the EVA phenotype segregates in a double-heterozygous mode in the affected individual who carries single mutations in both SLC26A4 and FOXI1. This finding is consistent with our observation that EVA occurs in the Slc26a4(+/-); Foxi1(+/-) double-heterozygous mouse mutant. These results support a novel dosage-dependent model for the molecular pathogenesis of PS and nonsyndromic EVA that involves SLC26A4 and its transcriptional regulatory machinery.
Nyckelord
- Alleles
- Amino Acid Sequence
- Animals
- Binding Sites
- COS Cells
- Cercopithecus aethiops
- Conserved Sequence
- Electrophoretic Mobility Shift Assay
- Female
- Forkhead Transcription Factors
- chemistry
- genetics
- metabolism
- Genes
- Reporter
- Genetic Screening
- Hearing Loss
- diagnosis
- genetics
- Heterozygote
- Humans
- Luciferases
- metabolism
- Membrane Transport Proteins
- genetics
- Mice
- Models
- Genetic
- Molecular Sequence Data
- Mutation
- Pedigree
- Promoter Regions (Genetics)
- Protein Binding
- Protein Structure
- Tertiary
- Sequence Homology
- Amino Acid
- Siblings
- Syndrome
- Trans-Activators
- chemistry
- genetics
- metabolism
- Transcription
- Genetic
- Vestibular Aqueduct
- pathology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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