c.98 + 3A>G and c.155 + 1G>T splice-site variants in the ABO*B.01 allele lead to weak antigen expression in the Chinese individuals
BackgroundMany variants within the ABO gene across multiple subtypes have been identified. These variants are located in the coding region, the erythroid-specific regulatory element region of intron 1, splice sites, and other non-coding regions. Howeve…