In 1997, PTA1 cDNA was cloned from cDNA library of TPA activated Jurkat cells, which belongs to immunoglobulin superfamily (IgSF) with only two Ig-V like domains.

• 1997年，本室与澳大利亚Newcastle大学合作，从TPA活化的Jurkat细胞cDNA文库中克隆了PTA1基因，证实了PTA1分子是一种新的分化抗原，属于免疫球蛋白超家族成员，胞膜外区仅有2个V样结构域。