Distribution of CDR3 length and nucleotide incorporation. (A) The average percentage of productive unique IgH, IgK, IgL, TRD, and TRB rearrangements with a certain nucleotide CDR3 length in XLF-deficient patients (gray) and control (black). The numbers in the IgH and TRD graph indicate the difference in the median CDR3 length between the XLF-deficient patients and the controls. (B) Distribution of the total number of N-nucleotides that are an A, T, C, or G nucleotide in controls and XLF-deficient patients.