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KMID : 0191120040190020218
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Journal of Korean Medical Science
2004 Volume.19 No. 2 p.218 ~ p.222
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Molecular Analysis of X-linked Chronic Granulomatous Disease in Five Unrelated Korean Patients
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Oh HB
Park JS/Lee W/Yoo SJ/Yang JH/Oh SY
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Abstract
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Chronic granulomatous disease (CGD) is a fatal genetic disorder in which phagocytes fail to produce antimicrobial superoxide because of NADPH oxidase deficiency. Molecular defects in CYBB gene causing X-linked CGD are responsible for about 70% of all cases. This study was done to confirm genetic defects of CYBB gene in five Korean patients who were highly suggestive of having CGD by clinical history. We performed initial screening for five unrelated Korean patients using single strand conformation polymorphism (SSCP) and then selective sequencing for the regions involving the abnormal bands. Activated NBT tests revealed that all patients were X-linked. SSCP analysis for CYBB gene showed abnormal bands in all patients. The molecular defects of five patients were as follows: c.1663insT, c.1111-1G>T, c.39_40insG, c.927delC and c.434T>C mutation. This result will help the families with prenatal diagnosis or genetic counseling.
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KEYWORD
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