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为了分析广东地区汉族人群MHC－C2的同种异型及基因频率分布，用聚丙烯酰胺凝胶等电聚焦电泳及溶血覆盖试验，测定了21个广东地区汉族家庭的42个无血缘关系的亲代血标本，C2表型为：C2CC36人；C2BC4人；C2AC2人C2的基因频率为：C2*C0．9286；C2。B0．0476；CZ。A00238。符合C2在各种族人群分布的一场规律，用对应分析方法，分析了该群体与世界主要种族间MHC－C2基因频率的分布特点，广东地区汉族人与西班牙人、黑种人和白种人的距离较远，欧氏距离分别为0．2542、0．2520、0．2376，与日本人最接近，欧氏距离为0．1636。
In order to analyze the MHC-C2 allotype and gene frequency distribution in Han population in Guangdong, polyacrylamide gel isoelectric focusing electrophoresis and hemolytic coverage test were performed to determine the relationship between 42 unrelated parental blood of 21 Han families in Guangdong Samples, C2 phenotype: C2CC36 people; C2BC4 people; C2AC2 human C2 gene frequency: C2 * C0.9286; C2. B0.0476; CZ. A00238. According to the law of C2 distribution in all ethnic groups, we analyzed the distribution of MHC-C2 gene frequencies between this group and the world’s major races using the corresponding analysis method. Among Han and Spaniards in Guangdong, blacks and whites The distance between Euclidean distance is 0.2542,0.2520,0.2376, which is the closest to the Japanese with a Euclidean distance of 0.1636.