Proteins are responsible for nearly every task of cellular life, including cell shape and inner organization, product manufacture and waste cleanup, and routine maintenance. Proteins also receive signals from outside the cell and mobilize intracellular response. They are the workhorse macromolecules of the cell and are as diverse as the functions they serve.
The protein helps for the proper functioning of antibodies resisting infection, essential to the structure of red blood cells, for the regulation of enzymes and hormones, for growth and for the repair of the body tissue.