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SP Cai, JZ Zhang, DH Huang, ZX Wang and YW Kan
Department of Medicine, Howard Hughes Medical Institute, University of
California, San Francisco 94143-0724.
We describe a simple approach for detecting beta-thalassemia mutations in
geographic areas such as southern China where multiple mutations are known
to occur. Segments of the beta-globin gene were amplified in vitro by using
the polymerase chain reaction. Dot blot hybridization of the amplified DNA
with oligonucleotide probes corresponding to the six mutations found in
southern China could directly identify the mutations causing
beta-thalassemia in the affected families. The increased number of target
sequences after amplification allows the use of 35S-labeled probes, which
are reusable for up to 3 months. The mutations can be determined in two
days.
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| Copyright © 1988 by American Society of Hematology Online ISSN: 1528-0020 | |||||||||