The mode value of its chromosome is 93. The Ig class of McAb 4F8 was IgG 1. The McAb was purified from ascites by a simple procedure of caprylic acid precipitation.

• 对其中的一株4F8进行研究，其杂交瘤细胞染色体众数为93，分泌的抗体为IgG1。