MPZL2 is a novel gene associated with autosomal recessive nonsyndromic moderate hearing loss

Bademci G., Abad C., İNCESULU Ş. A., Rad A., Alper O., Kolb S. M., ...Daha Fazla

HUMAN GENETICS, cilt.137, sa.6-7, ss.479-486, 2018 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 137 Sayı: 6-7
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1007/s00439-018-1901-4
  • Dergi Adı: HUMAN GENETICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.479-486
  • Gazi Üniversitesi Adresli: Hayır

Özet

While recent studies have revealed a substantial portion of the genes underlying human hearing loss, the extensive genetic landscape has not been completely explored. Here, we report a loss-of-function variant (c.72delA) in MPZL2 in three unrelated multiplex families from Turkey and Iran with autosomal recessive nonsyndromic hearing loss. The variant co-segregates with moderate sensorineural hearing loss in all three families. We show a shared haplotype flanking the variant in our families implicating a single founder. While rare in other populations, the allele frequency of the variant is 0.004 in Ashkenazi Jews, suggesting that it may be an important cause of moderate hearing loss in that population. We show that Mpzl2 is expressed in mouse inner ear, and the protein localizes in the auditory inner and outer hair cells, with an asymmetric subcellular localization. We thus present MPZL2 as a novel gene associated with sensorineural hearing loss.