ALCAM belongs to immunoglobulin gene superfamily.It is mainly expressed on leucocyte and thymic epithelial cell and is the ligand of CD6 lymphocyte antigen.

• ALCAM主要表达在白细胞和胸腺上皮细胞,属于免疫球蛋白基因超家族的成员,是淋巴细胞抗原CD6的配基。