All these three McAbs are IgG1. Antibodies additivity assay demonstrated that both anti-TdT2 and 3 recognized the same epitope of calf thymus TdT,while anti-TdT1 recognized the other.

• 抗体相加试验证明抗TdT2和抗TdT3识别TdT的同一表位，而抗TdT1则识别另一表位；