Protein Structure

Protein structure is the three-dimensional arrangement of atoms in a protein molecule. Proteins are polymers specifically polypeptides formed from sequences of amino acids, the monomers of the polymer. A single amino acid monomer may also be called a residue indicating a repeating unit of a polymer. Proteins form by amino acids undergoing condensation reactions, in which the amino acids lose one water molecule per reaction in order to attach to one another with a peptide bond. By convention, a chain of 30 amino acids is often identified as a peptide, rather than a protein. This is the topic of the scientific field of structural biology, which employs techniques such as X-ray crystallography, NMR spectroscopy, and dual polarisation interferometry to determine the structure of proteins.


  • Structure classification
  • Computational prediction of protein structure
  • Protein structure databases
  • Protein Sequence Analysis
  • Protein structure determination
  • Protein stability
  • Protein folding
  • Protein dynamics
  • Levels of protein structure

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