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

Sir Demis, chief executive of Google's AI company DeepMind, used AI to predict the structures of almost all known proteins and created a tool called AlphaFold2.

From BBC • May 18, 2026

In 2024, computer scientist Sir Demis Hassabis shared the Nobel prize for Chemistry for "revolutionary" work on proteins, the building blocks of life.

From BBC • May 18, 2026

When DNA becomes damaged, whether from rapid tumor growth or from cancer treatments, a modified version of MYC moves directly to the damaged area and helps gather the proteins needed for repair.

From Science Daily • May 17, 2026

Using advanced proteomics technology, the team tracked roughly 3,000 proteins circulating in the bloodstream.

From Science Daily • May 17, 2026

Their chromosomes and proteins have been studied with such detail and precision that scientists know their every quirk.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot