isobutüülaluse
Isobutylase is a term that could refer to a few different biochemical entities, most commonly an enzyme that acts on isobutyl groups. Specifically, it might refer to an enzyme involved in the metabolism or synthesis of isobutanol or related compounds. Isobutanol is a four-carbon alcohol that is a structural isomer of butanol. Enzymes in this category could be involved in various biological processes, including fermentation by microorganisms or detoxification pathways in some organisms.
One possibility is that isobutylase refers to an enzyme within a metabolic pathway that produces isobutanol