Safekipedia
Molecular biologyProteinsProteomics

Protein

Adapted from Wikipedia · Explorer experience

A beautiful butterfly resting on a flower, showing the delicate patterns on its wings.

What Are Proteins?

Proteins are tiny helpers inside every living thing. They are made of smaller parts called amino acids. Think of proteins like little workers that help your body do many important jobs.

Proteins help your body in many ways. They help make chemical reactions go faster, give your cells their shape, and help tiny parts move around. They are very important for life!

Where Do Proteins Come From?

Proteins are found inside all living things, from tiny bacteria to big animals and plants. Even a very small cell can have many proteins, and a human cell can have billions! They help plants turn carbon dioxide into food through photosynthesis.

Fun Facts About Proteins

  • Proteins fold into special shapes to do their jobs. Some fold by themselves, while others need help from special helpers.
  • One common protein in nature is RuBisCO. It helps plants make food!
  • Proteins can be grouped by their shapes. Some are like soft balls, while others are long and stretchy, like in your hair and nails.

Proteins are amazing tiny workers that keep everything in your body running smoothly!

Images

Illustration of a protein structure showing a transcription factor with a leucine zipper domain.
A colorful 3D diagram showing the structure of myoglobin, the protein that stores oxygen in our muscles.
A scientific diagram showing the structure of a peptide bond, which connects amino acids in proteins.
A scientific diagram showing how peptide bonds connect amino acids to form proteins.
A scientific illustration showing the structure of a protein complex that helps other proteins fold properly.
Three scientific views of a protein molecule showing its structure in different styles.
Scientific illustration showing the molecular surface of several proteins, including Immunoglobulin, Hemoglobin, Insulin, Adenylate Kinase, and Glutamine Synthetase, to help understand their comparative sizes.
Diagram showing how EVH proteins are organized, helpful for learning about biology and proteins.
A colorful 3D model showing the structure of the enzyme hexokinase, which helps cells use sugar for energy.
Illustration of a protein structure showing how an antibody binds to a molecule, helping the immune system fight disease.
Diagram showing how amino acids link together to form protein structures, including the peptide bond and different levels of protein folding.
Scientist John Kendrew examining a model of the protein myoglobin, showing how scientists study tiny structures.
Examples showing different parts of a cell where proteins can be found.

This article is a child-friendly adaptation of the Wikipedia article on Protein, available under CC BY-SA 4.0.

Images from Wikimedia Commons. Tap any image to view credits and license.