Syncytin started as a surface protein on retroviruses that fused them to cells.

合胞体蛋白开始作为一种逆转录病毒表面蛋白，帮助病毒和细胞融合。

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Then they injected the mice with macrophages lacking a surface protein called TLR4.

然后他们用缺乏一种TLR4表面蛋白的巨噬细胞注射小鼠。

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The next big target is another surface protein, neuraminidase (see "Moving target").

其次是另一种表面蛋白神经氨酸酶（见 “ 转移攻击 ” ）。

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Then, your muscle cells would start producing Hepatitis B surface antigen and your immune system recognizing that's a foreign protein would start responding to it.

于是,肌肉细胞将会,开始制造乙肝表面抗原,然后免疫系统就会识别出,那是外来蛋白质并且产生免疫应答

耶鲁公开课 - 生物医学工程探索课程节选

The one that's on the top here is called ligand-gated ion channel and an ion channel is a protein that sits in the surface of a cell.

最上面的这个叫作配体门控离子通道,离子通道是一类位于细胞表面的蛋白

耶鲁公开课 - 生物医学工程探索课程节选

That's making the cell look foreign because some of that foreign protein is on the surface with MHC1.

这使得整个细胞亦被视为外源物,因为某些外源蛋白,和MHC1共同出现在细胞表面

耶鲁公开课 - 生物医学工程探索课程节选

Cohen took the malaria surface protein used in Ballou's vaccine and fused it to a protein from the hepatitis B virus, creating a harmless particle that looked like a virus to the immune system.

FORBES: Magazine Article

It works by introducing a protein whose surface resembles that of the malaria parasite, thus inducing an immune reaction.

ECONOMIST: Malaria research gets a shot in the arm

The protein on the surface of the virus, called gp120, constantly mutates to escape detection by antibodies.

FORBES: Outsmarting AIDS