Fig. 1. Families with the E1021K p110δ mutation.
(A) ○ and □ - unaffected; ● and ■ - affected; and
- available data indicate recurrent infections. Age at the time of death is shown for patients who died ≤30 years of age. PIK3CD genotype is shown if known: wt, wild type allele encoding glutamic acid (E1021); mut, mutant allele encoding lysine (K1021). (B) Sequence chromatogram showing heterozygous mutation c.3061G>A in the PIK3CD gene leading to the E1021K amino-acid change in p110δ. CpG dinucleotide is underlined.