目的对广东地区汉族人群的甘露聚糖结合凝集素结构基因第一外显子第54位密码点突变（GGC54GAC）进行初步筛查。

Objective To screen the point mutation at the codon 54(GGC54GAC) in the first exon of the mannan binding lectin (MBL) gene in Hans from Guangdong.

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目的：探讨宁夏汉族人群中甘露糖结合凝集素(MBL)基因54位点多态性，为进一步研究MBL基因突变与乙型肝炎间的关联性提供依据。

Objective: To discuss mannose binding lectin (MBL) gene polymorphisms at 54 locus of Han population in Ningxia for further research on relationship of MBL gene mutation and HBV infection.

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