two chinese patients with hbq-alpha 2 74 asp replaced by his beta 2-alpha-thalassemia , one hbq-alpha 2 74 or 75 asp replaced by his beta 2 carrier , and one hbg-alpha 2 30 glu replaced by gln beta 2 carrier were studied to determine the number of alpha-globin genes in their chromosomes .
C0061472
glu
C0017797
gln