overview

• Greek word of Protein

  proteios
• proteios


  of first importance
• they play a lot of important physiological functions

  Protein
• most abundant macromolecule in the body

  Protein
• naturally occurring long chain of !-amino acids

  proteins
• a chain of a-amino acids is only considered a protein when it contains?

  at least 50 amino acid residues
• contains below 50 amino acid residues


  peptide
• also known as the side chain


  R-group
• it gives an amino acid its identity

  R-group
• Amino acids in peptides and proteins are connected to each other via?

  peptide bond
• what do you call a bond that is formed when the carboxyl group of one amino acid reacts with the amino group of another amino acid

  peptide bond
• Proteins assume a specific three-dimensional structure, known as their?

  native conformation
• protein may be?


  globular (sheprical) or fibrous (elongated)
• A change in a protein’s native conformation


  denaturation