Seco, C.Z.* ; Giese, A.P.* ; Shafique, S.* ; Schraders, M.* ; Oonk, A.M.M.* ; Grossheim, M.* ; Oostrik, J.* ; Strom, T.M. ; Hegde, R.* ; van Wijk, E.* ; Frolenkov, G.I.* ; Azam, M.* ; Yntema, H.G.* ; Free, R.H.* ; Riazuddin, S.* ; Verheij, J.B.* ; Admiraal, R.J.* ; Qamar, R.* ; Ahmed, Z.M.* ; Kremer, H.*
Novel and recurrent CIB2 variants, associated with nonsyndromic deafness, do not affect calcium buffering and localization in hair cells.
Eur. J. Hum. Genet. 24, 542-549 (2016)
Variants in CIB2 can underlie either Usher syndrome type I (USH1J) or nonsyndromic hearing impairment (NSHI) (DFNB48). Here, a novel homozygous missense variant c.196C>T and compound heterozygous variants, c.[97C>T];[196C>T], were found, respectively, in two unrelated families of Dutch origin. Besides, the previously reported c.272 T>C functional missense variant in CIB2 was identified in two families of Pakistani origin. The missense variants are demonstrated not to affect subcellular localization of CIB2 in vestibular hair cells in ex vivo expression experiments. Furthermore, these variants do not affect the ATP-induced calcium responses in COS-7 cells. However, based on the residues affected, the variants are suggested to alter αIIβ integrin binding. HI was nonsyndromic in all four families. However, deafness segregating with the c.272T>C variant in one Pakistani family is remarkably less severe than that in all other families with this mutation. Our results contribute to the insight in genotype-phenotype correlations of CIB2 mutations.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Myosin-viia Gene; Integrin-binding Protein-1; I Usher-syndrome; Recessive Deafness; Hearing-loss; Biochemical-characterization; Retinitis-pigmentosa; Mutations; Locus; Maps
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2016
Prepublished im Jahr
2015
HGF-Berichtsjahr
2015
ISSN (print) / ISBN
1018-4813
e-ISSN
1476-5438
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 24,
Heft: 4,
Seiten: 542-549
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Nature Publishing Group
Verlagsort
London
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
Forschungsfeld(er)
Genetics and Epidemiology
PSP-Element(e)
G-500700-001
Förderungen
Copyright
Erfassungsdatum
2015-07-17