The gene mutation frequency of serum mannose combin-ing agglutinator gene exon I at 52 site condon has a little difference among different nationalities? and the mutation degreee is higher in the Han peo-ple than in Hui people.

• 血清甘露糖结合凝集素外显子I52位密码子的点突变频率在不同的民族略有差异,汉族突变度显著高于回族。