A-level Chemistry/OCR (Salters)/Engineering Proteins

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A ribbon diagram of the human insulin hexamer, showing two Zn2+ ions and the histidine residues that ligate them. Each insulin monomer making up the hexamer is coloured differently.

Engineering Proteins is the eighth unit in the Salters Advanced Chemistry course.

Chemical Storylines sections[edit]

  • EP1 Christopher's story
  • EP2 Protein building
  • EP3 Genetic engineering
  • EP4 Proteins in 3D
  • EP5 Giving evolution a push
  • EP6 Enzymes
  • EP7 Summary

Chemical Ideas sections[edit]

  • 3.3 Shapes of molecules (revision)
  • 3.5 Geometric isomerism (revision)
  • 3.6 Optical isomerism
  • 5.3 Forces between molecules: temporary and permanent dipoles (revision)
  • 5.4 Forces between molecules: hydrogen bonding (revision)
  • 6.6 Nuclear magnetic resonance spectroscopy
  • 7.1 Chemical equilibrium (revision)
  • 7.2 Equilibria and concentrations
  • 10.2 The effect of temperature on rate (revision)
  • 10.3 The effect of concentration on rate
  • 10.5 How do catalysts work? (revision)
  • 13.3 Carboxylic acids and their derivatives (revision)
  • 13.4 The –OH group in alcohols, phenols and acids (revision)
  • 13.8 Amines and amides (revision)
  • 13.9 Amino acids


  • EP2.1 Investigating amines and amino acids
  • EP2.2 What’s in aspartame?
  • EP2.3 Using nuclear magnetic resonance (n.m.r.) spectroscopy for structure determination
  • EP2.4 The shapes of a-amino acids
  • EP2.5 A testing smell
  • EP2.6 Taking note of proteins
  • EP2.7 Modelling DNA
  • EP2.8 Life reveals its twisted secret
  • EP6.1 Testing for glucose
  • EP6.2 Succinate dehydrogenase (Optional extension)
  • EP6.3 The effect of enzyme and substrate concentration on the rate of a reaction
  • EP6.4 Using the iodine clock method to find the order of a reaction
  • EP6.5 Enzyme kinetics
  • EP7 Check your notes on Engineering Proteins

External links[edit]