We don't know yet how the information represented by the amino acid sequence of a protein directs its folding into the proper conformation. Proteins know how to fold, even if we don't know how they do it. Enzymes are generally named for the reaction that they catalyze, as in alcohol dehydrogenase . Serum albumin transports fatty acids in the blood. Membrane transport proteins transport substances across cell membranes.
Mussels secrete glue proteins to attach themselves to rocks.
Simple versus Conjugated Proteins Simple proteins are composed only of amino acids.