%0 Journal Article %T Mild clinical expression of S-b thalassemia in a Brazilian patient with the b+ IVS-I-6 (T£¿C) mutation %A Sonati %A Maria de F¨¢tima %A Kaeda %A Jaspal %A Kimura %A Elza Miyuki %A Costa %A Fernando Ferreira %A Luzzatto %A Lucio %J Genetics and Molecular Biology %D 1998 %I Sociedade Brasileira de Gen¨¦tica %R 10.1590/S1415-47571998000400002 %X we report on an eight-year-old brazilian girl with s-b+ thalassemia. the patient had a steady 10.1 g/dl hemoglobin with 57% hbs. direct sequence analysis of b-globin gene showed her to be heterozygous for the ivs-i-6 (t£¿c) mutation. this b+ thalassemia mutation, sometimes referred to as the portuguese type, was found to be associated with the c£¿t polymorphism at codon 2. in combination with the bs gene, this mutation results in very mild sickle cell disease symptoms. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1415-47571998000400002&lng=en&nrm=iso&tlng=en