Four gene polymorphisms were identified in exon 7. They were Gly 551 X ( GGC → GGT ), Arg 554 His ( CGT → CAT ), Gln 567 Arg ( CAA → CGA ) and Val 582 Ile ( GTC → ATC ).同時(shí)在外顯子7上發(fā)現(xiàn)4個(gè)位點(diǎn)的基因多態(tài)性,分別為Gly551X(GGC→GGT ) 、 Arg554H...