Chien, Yu, Chen2017-04-202017-04-201996Chien, Yu, Chen (1996) Biochemical analysis of the W28F mutant of human class Pi glutathione S-transferase, University of the Witwatersrand, Johannesburg, <http://hdl.handle.net/10539/22412>http://hdl.handle.net/10539/22412A dissertation submitted in fulfilment of the requirements for the degree of Master of Science at the University of the Witwatersrand. Johannesburg, October 1996.Glutathione S-transferase (GST) class Pi has two tryptophan residues which are conserved within domain one. Trp38 plays a functional role in sequestering glutathione at the active site, whereas Trp28 plays a structural role. The effects of the sterically-conservative substitution of Trp28 to Phe were investigated. When the W28F mutant was compared with the wild-type enzyme, mutation of Ttp28 to Phe was not well tolerated and resulted in a dimeric protein with impaired catalytic function and conformational stability. [Abbreviated Abstract. Open document to view full version]Online resource (136 leaves)enGlutathione transferaseThesis