The specific activity of AN accelerator is another common unit. this can be the activity of AN accelerator per weight unit of total macromolecule (expressed in μmol min−1 mg−1). Specific activity provides a mensuration of accelerator purity within the mixture. it's the small moles of product fashioned by AN accelerator during a given quantity of your time (minutes) below given conditions per weight unit of total proteins. Specific activity is adequate to the speed of reaction increased by the quantity of reaction divided by the mass of total macromolecule. The SI unit is katal/kg, however a additional sensible unit is μmol/mgmin.
Specific activity could be a live of accelerator processivity (the capability of accelerator to be processed), at a selected (usually saturating) substrate concentration, and is sometimes constant for a pure accelerator.
An active web site volumetric analysis method are often in hot water the elimination of errors arising from variations in cultivation batches and/or misfolded accelerator and similar problems. this can be a live of the quantity of active accelerator, calculated by e.g. titrating the quantity of active sites gift by using AN irreversible matter. the particular activity ought to then be expressed as μmol min−1 mg−1 active accelerator. If the relative molecular mass of the accelerator is thought, the turnover variety, or μmol product per second per μmol of active accelerator, are often calculated from the particular activity. The turnover variety are often pictured because the variety of times every accelerator molecule carries out its chemical process cycle per second.

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