Which of the following is NOT a function of proteins in the human body?

Proteins play a vital role in numerous functions within the human body, including transporting molecules, providing structural support, and facilitating chemical reactions. However, storing genetic information is primarily the function of nucleic acids, specifically DNA and RNA, rather than proteins.

Nucleic acids encode genetic information necessary for the development, functioning, growth, and reproduction of living organisms. While proteins can interact with DNA and RNA and are essential in the processes that express this genetic information, they do not serve as a medium for storing that information. This distinction highlights the specific roles that different biomolecules play in biological systems. Proteins can be involved in numerous critical tasks, but the storage of genetic material is not one of them.