But there is one internal protein, called M2, that protrudes a bit from the virus.

不过，病毒中有一种被称为M2的内在蛋白质突出来了一点。

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Each cell is linked to this matrix by proteins in its membrane called integrins, and the cell's internal protein skeleton is constantly tugging on these integrins to create a taut, tuned whole.

细胞膜内一种称为整合素的蛋白质将每个细胞与基质相连，同时细胞内部的蛋白架构不断牵引着这些整合素，创建出一个拉紧的、协调的整体。

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Protein supplements may overburden some internal organ, thus leading to its malfunctioning.

蛋白质补充剂可能会使某些内脏器官负担过重，从而导致其功能失常。

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What Dr Zussman and his colleagues have managed to do is break the internal bonds in the protein molecules by mixing them with a chemical called beta-mercaptoethanol.

ECONOMIST: Monitor

The molecules of this protein are more or less globular, and are held in that shape by internal cross-links between different parts of the amino-acid chain of which the protein is composed.

ECONOMIST: Monitor

They are, in effect, internal viruses unable to leave a cell because they lack the protein coats that allow real viruses to survive in the outside world and attach themselves to new host cells, but contributing nothing to the welfare of the cells they inhabit.

ECONOMIST: The first complete DNA sequence of an animal is now in the bag