We have now performed qRT-PCR for a new set of more patient samples (10 healthy controls, 27 AA patients, and 14 DKC patients) and did not observe a significant difference in gene expression levels of either the long (NM_020226.3) or the short transcript of PRDM8 (NM_001099403.2; Fig. 3b–d). This evidence concerns the gene PRDM8 and dyskeratosis congenita.