Fig. 3From: Clinical characteristics and prenatal diagnosis for 22 families in Henan Province of China with X-linked agammaglobulinemia (XLA) related to Bruton’s tyrosine kinase (BTK) gene mutationsReal-time PCR results of BTK gene in Family 21 and the male control. (The deletion of exon 2, 4 and 5 was hemizygous in the affected proband, and heterozygous in the mother. The female fetus and the male control did not carry the large deletion mutation)Back to article page