Severe XLP Phenotype Caused by a Novel Intronic Mutation in the SH2D1A Gene

B. Tóth, B. Soltész, E. Gyimesi, G. Csorba, Veres, A. Lányi, G. Kovács, L. Máródi, M. Erdős

Research output: Article

3 Citations (Scopus)

Abstract

We describe here a novel c.137 + 5G > A intronic mutation in the SH2D1A gene of the signaling lymphocyte activation molecule (SLAM)-associated protein (SAP) in association with Epstein-Barr virus (EBV)-induced fatal infectious mononucleosis (FIM) in an 8-year-old male patient and his 3-year-old step brother. The mother and the maternal grandmother of the boys are healthy and heterozygous for this sequence variant. Genetic sequencing of blood-cell-derived cDNA in the younger patient revealed a 22 bp deletion in the SH2D1A cDNA. Immunoblot and flow cytometry analysis performed in this younger patient showed the lack of SAP protein expression in peripheral blood lymphocytes. These data suggest that the novel c.137 + 5G > A mutation results in loss of function of SAP protein and leads to typical X-linked lymphoproliferative disease phenotype. We propose that intron 1 and the c.137 + 5G may be the most frequent intronic hot spot for SH2D1A splicing mutation.

Original languageEnglish
Pages (from-to)26-31
Number of pages6
JournalJournal of Clinical Immunology
Volume35
Issue number1
DOIs
Publication statusPublished - 2015

Fingerprint

Phenotype
Mutation
Complementary DNA
Mothers
Genes
Infectious Mononucleosis
Proteins
Lymphoproliferative Disorders
Lymphocyte Activation
Human Herpesvirus 4
Introns
Siblings
Blood Cells
Flow Cytometry
Lymphocytes
Signaling Lymphocytic Activation Molecule Associated Protein
Grandparents

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

Cite this

Severe XLP Phenotype Caused by a Novel Intronic Mutation in the SH2D1A Gene. / Tóth, B.; Soltész, B.; Gyimesi, E.; Csorba, G.; Veres, ; Lányi, A.; Kovács, G.; Máródi, L.; Erdős, M.

In: Journal of Clinical Immunology, Vol. 35, No. 1, 2015, p. 26-31.

Research output: Article

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AU - Soltész, B.

AU - Gyimesi, E.

AU - Csorba, G.

AU - Veres,

AU - Lányi, A.

AU - Kovács, G.

AU - Máródi, L.

AU - Erdős, M.

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