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J Clin Invest DOI:10.1172/JCI63597

Exome sequencing identifies GATA1 mutations resulting in Diamond-Blackfan anemia.

Publication TypeJournal Article
Year of Publication2012
AuthorsSankaran, VG, Ghazvinian, R, Do, R, Thiru, P, Vergilio, J-A, Beggs, AH, Sieff, CA, Orkin, SH, Nathan, DG, Lander, ES, Gazda, HT
JournalJ Clin Invest
Volume122
Issue7
Pages2439-43
Date Published2012 Jul
ISSN1558-8238
KeywordsAnemia, Diamond-Blackfan, Base Sequence, Case-Control Studies, DNA Mutational Analysis, Exome, GATA1 Transcription Factor, Genetic Association Studies, Hematopoiesis, Humans, Male, Real-Time Polymerase Chain Reaction, Sequence Deletion, Young Adult
Abstract

Diamond-Blackfan anemia (DBA) is a hypoplastic anemia characterized by impaired production of red blood cells, with approximately half of all cases attributed to ribosomal protein gene mutations. We performed exome sequencing on two siblings who had no known pathogenic mutations for DBA and identified a mutation in the gene encoding the hematopoietic transcription factor GATA1. This mutation, which occurred at a splice site of the GATA1 gene, impaired production of the full-length form of the protein. We further identified an additional patient carrying a distinct mutation at the same splice site of the GATA1 gene. These findings provide insight into the pathogenesis of DBA, showing that the reduction in erythropoiesis associated with the disease can arise from causes other than defects in ribosomal protein genes. These results also illustrate the multifactorial role of GATA1 in human hematopoiesis.

URLhttp://dx.doi.org/10.1172/JCI63597
DOI10.1172/JCI63597
Pubmed

http://www.ncbi.nlm.nih.gov/pubmed/22706301?dopt=Abstract

Alternate JournalJ. Clin. Invest.
PubMed ID22706301
PubMed Central IDPMC3386831
Grant ListR01 HL107558 / HL / NHLBI NIH HHS / United States
T32 HL007574 / HL / NHLBI NIH HHS / United States
U54 HG003067 / HG / NHGRI NIH HHS / United States
T32 HL007574-30 / HL / NHLBI NIH HHS / United States
U54 HG003067-09 / HG / NHGRI NIH HHS / United States