proteins

Cultural  

1. Complex organic molecules (see also organic molecule) made up of amino acids. Proteins are basic components of all living cells and are therefore among the principal substances that make up the body. In addition to being necessary for the growth and repair of the body's tissues, proteins provide energy and act as enzymes that control chemical reactions in the cell.

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Foods that contain a high percentage of protein include meat, fish, poultry, milk products, beans, and nuts.

Example Sentences

When healthy macrophages were exposed to high levels of LDL cholesterol in the lab, they stopped dividing, began releasing inflammatory proteins and displayed the same p21-TREM2 signature.

From Science Daily • Apr. 16, 2026

It tells the cell both how to construct each of the complex proteins it needs to function and how to create new cells.

From The Wall Street Journal • Apr. 16, 2026

To address this, the researchers focused on two viral proteins, gp350 and gp42.

From Science Daily • Apr. 15, 2026

These proteins are key targets in vaccine development.

From Science Daily • Apr. 12, 2026

They stripped away the proteins by dissolving the material in chloroform.

From "The Gene" by Siddhartha Mukherjee