Functions do proteins control




The amino acids that form a protein interact with each other, and thosecomplex interactions give each protein its own specific, three-dimensional structure. That structure in turn determines how a protein functions and what other molecules it impacts.


Common types of proteins are:


  • Enzymes, which put molecules together or break them apart.
  • Signaling proteins, which relay messages between cells, and receptors, which receive signals sent via proteins from other cells.
  • Immune system proteins, such as antibodies, which defend against disease and external threats.
  • Structural proteins, which give shape to cells and organs



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Rebecca Pearson
Editorial Manager