Forces That Drive Tertiary Structure. Most proteins fold into their tertiary structure in an aqueous environment-a cell is, after all, 60% water. The chemical properties of the various R-groups (sidechains) of the amino acids within the protein chain will influence the way that the protein folds in its environment.
This cold sensation will last approximately three to five minutes until a burning sensation appears. The burning sensation will fade into an ache, followed by numbness. Beware that once numbing occurs, remove and discontinue the ice. Continued application following numbing may result in tissue damage.
A Yusuf Boyd, NASM Elite Trainer , Athletic Training, answered. You should ice injuries for 20 minutes and allow at least 1 hour before icing again. The reason for icing is to decrease inflammation and/or pain in the affected area. The way it works is the ice lowers body temperature around the affected area, decreasing blood flow which in turn helps to reduce swelling.