Later this semester we will discuss a type of protein called "G-protein linked receptors". These are examples of transmembrane proteins that extend all the way through a cell membrane, protruding into the extracellular environment and into the cell itself. Look at Figure 3.2 and select one amino acid that would
likely be found:
1. Protruding out of the membrane into the external environment. Explain your answer.
2. Found in the membrane itself. Explain your answer.