The sequence of the constant region of SNC73 in SW480 cells is identical to that of IgA1. Both sequencing and Western blotting showed that the RAG1 and RAG2 expressed in SW480 cells were identical to that expressed in pre B lymphocytes.

• 对SNC73RT PCR产物的序列进行分析 ,发现SW 4 80中表达的SNC73基因的恒定区序列与免疫球蛋白A1完全一致。 对RAG1和RAG2RT PCR产物的序列进行分析以及Western印迹杂交检测 ,表明其与前B淋巴细胞表达的完全相同。