Phenolic substrates and suicide inactivation of tyrosinase: kinetics and mechanism.

  title={Phenolic substrates and suicide inactivation of tyrosinase: kinetics and mechanism.},
  author={Jose Luis Mu{\~n}oz-Mu{\~n}oz and Francisco Garc{\'i}a-Molina and Pedro Antonio Garc{\'i}a-Ru{\'i}z and Milagros Molina-Alarc{\'o}n and Jos{\'e} I Tudela and Francisco Garc{\'i}a-C{\'a}novas and Jos{\'e} Neptuno Rodr{\'i}guez-L{\'o}pez},
  journal={The Biochemical journal},
  volume={416 3},
The suicide inactivation mechanism of tyrosinase acting on its substrates has been studied. The kinetic analysis of the proposed mechanism during the transition phase provides explicit analytical expressions for the concentrations of o-quinone against time. The electronic, steric and hydrophobic effects of the substrates influence the enzymatic reaction, increasing the catalytic speed by three orders of magnitude and the inactivation by one order of magnitude. To explain the suicide… CONTINUE READING
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