Disulphide bridges

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Disulphide bridges are covalent sulphur-sulphur bonds formed by the oxidation of the thiol groups of two cysteine residues[1]. These types of bonds are most commonly found in the tertiary structure of proteins for further folding, and thus to produce a more specific shape for the ultimate funciton of the protein. Disulphide bonds tend not to be formed in intracellular proteins[2].

Reference

  1. http://www.cryst.bbk.ac.uk/PPS2/projects/day/TDayDiss/DisulphideBonds.html
  2. Moran L, Horton R, Scrimgeour G, Perry M, Principles of Biochemistry, 5th Ed, Essex, Pearson Education Limited, 2014, Page number 144


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