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protein Article

What do proteins do?

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Proteins are essential for life and are essential for a wide range of cellular activities. Protein enzymes catalyze the vast majority of chemical reactions that occur in the cell. Proteins provide many of the structural elements of a cell, and they help to bind cells together into tissues. Proteins, in the form of antibodies, protect animals from disease, and many hormones are proteins. Proteins control the activity of genes and regulate gene expression.

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