There are many, many different enzymes, each of which has a binding site that fits a specific molecule.

有许多许多不同的酶，每一种酶都有一个适用于特定细胞的结合部位。

Monoclonal antibodies have a high specificity, which means they can recognize and bind to a single antigen binding site.

单克隆抗体具有高特异性，这意味着它们可以识别并结合到单个抗原结合位点。

Secured to this zone are more Y-shaped antibodies that will also stick to HCG on one of its five binding sites.

这个区域有更多的 Y 字抗体，在它的五个面都会黏住 HCG。

It targets the genes that make the antibody's binding site.

它靶向构成抗体结合位点的基因。