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Structure of proteins
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  • 1. Structure of Proteins The twenty amino acids commonly found in proteins are joined together by peptide bondsPrimary Structure of Proteins  The sequence of amino acids in a protein is called the primary structure of the protein • primary structure of proteins is important because many genetic diseases result in proteins with abnormal amino acid sequences  If the primary structures of the normal and the mutated proteins are known, this information may be used to diagnose or study the disease
  • 2. Peptide bond In proteins, amino acids are joined covalently by peptide bonds, which are amide linkages between the α-carboxyl group of one amino acid and the α- amino group of another. For example, valine and alanine can form the dipeptide valylalanine through the formation of a peptide bond