GATA3 abnormalities in six patients with HDR syndrome

GATA3 mutations cause HDR (hypoparathyroidism, sensorineural deafness, and renal dysplasia) syndrome and, consistent with the presence of the second DiGeorge syndrome locus (DGS2) proximal to GATA3, distal 10p deletions often leads to HDR and DiGeorge syndromes. Here, we report on six Japanese patie...

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Published inEndocrine Journal Vol. 58; no. 2; pp. 117 - 121
Main Authors Fukami, Maki, Muroya, Koji, Miyake, Tetsuo, Iso, Manami, Kato, Fumiko, Yokoi, Hisashi, Suzuki, Yoshimi, Tsubouchi, Koji, Nakagomi, Yoshiko, Kikuchi, Nobuyuki, Horikawa, Reiko, Ogata, Tsutomu
Format Journal Article
LanguageEnglish
Published Japan The Japan Endocrine Society 2011
Subjects
Adolescent
Adult
Child, Preschool
Chromosomes, Human, Pair 10
DGS2
DiGeorge syndrome
DiGeorge Syndrome - genetics
Female
Frameshift Mutation
GATA3
GATA3 Transcription Factor - genetics
Gene Deletion
HDR syndrome
Hearing Loss, Sensorineural - genetics
Heterozygote
Humans
Hypoparathyroidism - genetics
Male
Mutation
Mutation, Missense
Nephrosis - genetics
Phenotypic spectrum
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Summary:GATA3 mutations cause HDR (hypoparathyroidism, sensorineural deafness, and renal dysplasia) syndrome and, consistent with the presence of the second DiGeorge syndrome locus (DGS2) proximal to GATA3, distal 10p deletions often leads to HDR and DiGeorge syndromes. Here, we report on six Japanese patients with GATA3 abnormalities. Cases 1-5 had a normal karyotype, and case 6 had a 46,XX,del(10)(p15) karyotype. Cases 1-6 had two or three of the HDR triad features. Case 6 had no DiGeorge syndrome phenotype except for hypoparathyroidism common to HDR and DiGeorge syndromes. Mutation analysis showed heterozygous GATA3 mutations in cases 1-5, i.e., c.404-405insC (p.P135fsX303) in case 1, c.700T>C & c.708-709insC (p.F234L & p.S237fsX303) on the same allele in case 2, c.737-738insG (p.G246fsX303) in case 3, c.824G>T (p.W275L) in case 4, and IVS5+1G>C (splice error) in case 5. Deletion analysis of chromosome 10p revealed loss of GATA3 and preservation of D10S547 in case 6. The results are consistent with the previous finding that GATA3 mutations are usually identified in patients with two or three of the HDR triad features, and provide supportive data for the mapping of DGS2 in the region proximal to D10S547.
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ISSN:0918-8959
1348-4540
DOI:10.1507/endocrj.K10E-234