So these enzymes allow for the fine tuning of many metabolic processes. Now, isoenzymes are usually not only different in their three dimensional structure and their amino acid sequence, but they can also differ in the enzyme kinetics that they basically exhibit. So things like the V max, the maximum velocity of the enzyme, as well as the Km value, the mechanics constant, these things can basically differ depending on which isoenzyme we're actually looking at. And on top of that, these isoenzymes are usually controlled by different types of regulatory molecules. Now, one example of an isoenzyme found inside our body is lactate dehydrogenase LDH. And this is basically the molecule that is used in the process of anaerobic cellular respiration.