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.
Like corporations, they offer many benefits over partnerships and sole proprietorships. Whether an LLC or a corporation is better for a small business depends on the type of business. The best comparison here is between an LLC and an S corporation, because an LLC can choose to be taxed as an S corporation.