There are very few of Ca dependent proteases. I am not sure kinases need metals as cofactors (activation is a different thing; that's signaling). Alkaline phosphatase needs Zn. But I guess this is not as common as the dependence of nucleases on metal ions. In any case we do use a protein inhibitor cocktail while doing extraction.
Summary. 1  Incorporation and corporation cannot be differentiated as one leads to the other. 2  While incorporation is the process, corporation is the organisation formed out of this process.
The Differences Between a C Corp & an S Corp. An S corporation is a distinctive type of corporate entity that provides special tax advantages to owners of the business. A C corporation, also referred to as a regular corporation, is automatically formed when a business decides to incorporate. S corporations must file paperwork with the Internal Revenue Service, which is not a requirement for C corporations.