那些在记忆测试中表现良好的人，其体内的免疫球蛋白 A 水平会升高。免疫球蛋白 A 是一种抗体，是人体抵御细菌的第一道防线。

Those who did well on the memory test had an increase in levels of immunoglobulin A, an antibody that's the body's first line of defense against germs.

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一方面猫的蛋白质导致过敏反应，让人体生出一种叫免疫球蛋白E的抗体。

The cat protein, on the one hand, causes an allergic reaction, making the body produce an antibody called immunoglobulin E.

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抗体分子(免疫球蛋白)可分为几类，其本身的功能各有特色。

Antibody molecules (immunoglobulins) fall into several classes, each with its own functional characteristics.

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Another important class of antibodies is called IgM.

另一种重要的抗体是免疫球蛋白M

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The IgM is really five IgG-type molecules that are linked together through disulfide bonds, such that their FC portions are all pointing in and their antibody binding portions are all pointing out.

gM是由五个IgG分子组成的,IgG分子之间通过二硫键连接,免疫球蛋白尾部的FC片段都指向内侧,而抗体的抗原结合位点都指向外侧

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Not only the IgG but there are special antibodies called secretory IgA and these are highly enriched in mucosal fluids in the mucus lining of your gut, and the eye, and of other--of mucosal organs.

不仅仅是IgG分子,还有一些特殊的抗体,被称作分泌型免疫球蛋白A,IgA在体内粘液中广泛存在,例如,在小肠内壁和眼球周围以及,其他带有粘膜的器官中都有IgA的分布

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