Protein catabolism is the breakdown of proteins into amino acids and simple derivative compounds, for transport into the cell through the plasma membrane and ultimately for the polymerisation into new proteins via the use of ribonucleic acids (RNA) and ribosomes.

During protein catabolism, proteins are broken down into Amino Acids which can be used to make new Amino Acids or be converted to use in the Krebs Cycle.

See also

• Cell metabolism
• Anabolism
• Metabolism

Metabolism