What functions of proteins do you know?

Proteins perform the following functions in the human body:
– catalytic (all enzymes are proteins);
– regulatory (hormones are of a protein nature);
– construction (mandatory component of membranes);
– signal (membrane proteins are involved in the formation of nerve impulses);
– storing (egg proteins);
– contractile (actin and myosin – muscle proteins);
– protective (antibodies);
– transport (hemoglobin – transport protein of blood);
– energy (during oxidation of 1 g, 17.9 KJ is released).