GATA3 abnormalities and the phenotypic spectrum of HDR syndrome

K. Muroya, Tomonobu Hasegawa, Y. Ito, T. Nagai, H. Isotani, Y. Iwata, K. Yamamoto, S. Fujimoto, S. Seishu, Y. Fukushima, Y. Hasegawa, T. Ogata

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Abstract

We report on GATA3 analysis and the phenotypic spectrum in nine Japanese families with the HDR syndrome (hypoparathyroidism, sensorineural deafness, and renal dysplasia) (MIM 146255). Fluorescence in situ hybridisation and microsatellite analyses showed heterozygous gross deletions including GATA3 in four families. Sequence analysis showed heterozygous novel mutations in three families: a missense mutation within the first zinc finger domain at exon 4 (T823A, W275R), an unusual mutation at exon 4 (900insAA plus 901insCCT or C901AACCCT) resulting in a premature stop at codon 357 with loss of the second zinc finger domain, and a nonsense mutation at exon 6 (C1099T, R367X). No GATA3 abnormalities were identified in the remaining two families. The triad of HDR syndrome was variably manifested by patients with GATA3 abnormalities. The results suggest that HDR syndrome is primarily caused by GATA3 haploinsufficiency and is associated with a wide phenotypic spectrum.

Original languageEnglish
Pages (from-to)374-380
Number of pages7
JournalJournal of Medical Genetics
Volume38
Issue number6
Publication statusPublished - 2001

Fingerprint

Exons
Nonsense Codon
Zinc Fingers
Haploinsufficiency
Hypoparathyroidism
Mutation
Deafness
Missense Mutation
Fluorescence In Situ Hybridization
Microsatellite Repeats
Sequence Analysis
Spectrum Analysis
Kidney
Barakat syndrome

Keywords

  • GATA3
  • HDR syndrome
  • Mutation analysis
  • Phenotypic spectrum

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

Cite this

Muroya, K., Hasegawa, T., Ito, Y., Nagai, T., Isotani, H., Iwata, Y., ... Ogata, T. (2001). GATA3 abnormalities and the phenotypic spectrum of HDR syndrome. Journal of Medical Genetics, 38(6), 374-380.

GATA3 abnormalities and the phenotypic spectrum of HDR syndrome. / Muroya, K.; Hasegawa, Tomonobu; Ito, Y.; Nagai, T.; Isotani, H.; Iwata, Y.; Yamamoto, K.; Fujimoto, S.; Seishu, S.; Fukushima, Y.; Hasegawa, Y.; Ogata, T.

In: Journal of Medical Genetics, Vol. 38, No. 6, 2001, p. 374-380.

Research output: Contribution to journalArticle

Muroya, K, Hasegawa, T, Ito, Y, Nagai, T, Isotani, H, Iwata, Y, Yamamoto, K, Fujimoto, S, Seishu, S, Fukushima, Y, Hasegawa, Y & Ogata, T 2001, 'GATA3 abnormalities and the phenotypic spectrum of HDR syndrome', Journal of Medical Genetics, vol. 38, no. 6, pp. 374-380.
Muroya K, Hasegawa T, Ito Y, Nagai T, Isotani H, Iwata Y et al. GATA3 abnormalities and the phenotypic spectrum of HDR syndrome. Journal of Medical Genetics. 2001;38(6):374-380.
Muroya, K. ; Hasegawa, Tomonobu ; Ito, Y. ; Nagai, T. ; Isotani, H. ; Iwata, Y. ; Yamamoto, K. ; Fujimoto, S. ; Seishu, S. ; Fukushima, Y. ; Hasegawa, Y. ; Ogata, T. / GATA3 abnormalities and the phenotypic spectrum of HDR syndrome. In: Journal of Medical Genetics. 2001 ; Vol. 38, No. 6. pp. 374-380.
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