What is NOT considered a function of proteins in the body?

Proteins play a critical role in various functions within the body, and among the listed options, the storage of genetic information is not one of them. Proteins are essential for transportation, as they can help move substances like oxygen through the blood (e.g., hemoglobin). They are also vital for growth and maintenance of tissues, serving as the building blocks for muscle and other bodily structures. Additionally, proteins play a key role in acid-base balance by acting as buffers to help maintain pH levels in the body. In contrast, the storage of genetic information is primarily the role of nucleic acids, such as DNA and RNA, which are responsible for the encoding and transmission of genetic material. Thus, the choice reflecting the storage of genetic information stands out as not being a function of proteins.