Ontology highlight
ABSTRACT:
SUBMITTER: Then J
PROVIDER: S-EPMC4856421 | biostudies-literature | 2016 May
REPOSITORIES: biostudies-literature
Then Johannes J Wei Ren R Oeser Thorsten T Gerdts André A Schmidt Juliane J Barth Markus M Zimmermann Wolfgang W
FEBS open bio 20160401 5
Elevated reaction temperatures are crucial for the efficient enzymatic degradation of polyethylene terephthalate (PET). A disulfide bridge was introduced to the polyester hydrolase TfCut2 to substitute its calcium binding site. The melting point of the resulting variant increased to 94.7 °C (wild-type TfCut2: 69.8 °C) and its half-inactivation temperature to 84.6 °C (TfCut2: 67.3 °C). The variant D204C-E253C-D174R obtained by introducing further mutations at vicinal residues showed a temperature ...[more]