ATP2B4 and malaria: Moreover, the derived allele, which is associated with malaria protection, is correlated with decreased expression of this alternative first exon (P = 0.01, using data from 24 fetal and adult erythroblasts32; Fig. 5g) and all subsequent exons (P < 0.03) of ATP2B4, but not with the annotated first exon (P = 0.25).