The base elements contained in protein cells are: carbon, hydrogen, nitrogen and oxygen. Proteins are comprised of up to thousands of different units called amino acids. These amino acids link in a chain-like structure which make up a single protein cell.
The structure of an amino acid can vary in regards to the different elements that make them up and how they are comprised. For instance some amino acids contain which are irregular contain elements of sulfur and selenium.
Proteins are responsible for many bodily functions. Some of these protein functions act as antibodies which bind to organisms or viruses foreign to the body, aiding in preventing illness,
These also act as enzymes which carry out chemical functions taking place in a cell. Enzymes in addition to this, construct new molecular information by processing the genetic code stored in DNA.
Other types of proteins are; messenger proteins like hormones for example that transmit information for biological processes such as, different cells, tissues, and organs.
Structural proteins are responsible for maintenance and support of cells. Without these protein functions the body would not be able to move.
Transport and storage proteins ensure that atoms and other small molecules are carried throughout the body for necessary function of an organism.