Relationship of thermo-tolerance to [C2C1Im][OAc]-tolerance

Datta et al. (Datta et al.): Relative enzyme activity of an endoglucanase from Trichoderma viride (cross line, T = 37 ◦C), an endoglucanase from Thermotoga maritima (solid, T = 80 ◦C) and an endoglucanase from Pyrococcus horikoshii (horizontal line, T = 80 ◦C), in the presence of increasing concentrations of [C2C1Im][OAc]. Activities are reported as percentages of residual specific activity, taking the specific activity of IL free enzyme as 100% activity.
Gladden et al. (Gladden et al.): Maximum [C2C1Im][OAc] concentration at which ≥80% enzyme activity is retained versus optimum temperature (Topt) of the enzyme.  The enzymes fall into two clusters: the black polygon where 78% (7/9) of the enzymes with a Topt >70 °C have high [[C2C1Im][OAc]-tolerance, and the grey polygon where 82% (9/11) of the enzymes with a Topt ≤70 °C have lower [C2C1Im][OAc]-tolerance. Only 18% (2/11) of the enzymes with a Topt ≤70 °C have high [C2C1Im][OAc]-tolerance.