TURKISH JOURNAL OF PEDIATRICS, vol.48, no.4, pp.362-364, 2006 (SCI-Expanded)
X-linked agammaglobulinemia (XLA) is a primary B cell immunodeficiency disorder, caused by a defect in the Bruton tyrosine kinase (BTK) gene. Here, we describe a novel four base pair mutation (838delGAGT) in intron 9 of the BTK gene leading to the skipping of exon 9 in a 2.5-year-old boy with this disorder.