OEE: Let's move to more examples where lean tools work great; OEE (Overall Equipment Effectiveness) is a great example to demonstrate that, in our industry, there are areas that should leverage OEE as an equipment performance metric, and where OEE does not add value.
Making the world better, one answer at a time. The seven protein classes are structural proteins, storage proteins, defensive proteins, transport proteins, signal proteins, contractile proteins, and enzymes.
1 They may also be composed of different subunits. 2  Hemoglobin is an example of a protein with quaternary structure. 3  Hemoglobin, found in the blood, is an iron containing protein that binds oxygen molecules. 4  It contains four subunits: two alpha subunits and two beta subunits. There are two types of secondary structures observed in proteins. 2  One type is the alpha (Î±) helix structure. 3  This structure resembles a coiled spring and is secured by hydrogen bonding in the polypeptide chain.