Transporters carry a molecule (such as glucose) from one side of the plasma membrane to the other. Receptors can bind an extracellular molecule (triangle), and this activates an intracellular process.

Proteins are important molecules that perform a variety of functions essential to life. To function properly, many proteins must fold into specific structures. However, the way proteins fold into ...

What you need to know about this essential macronutrient and how it works. Reviewed by Dietitian Kelli McGrane, M.S., RD Proteins are made up of amino acids and are found in every cell of the body.

For Shahir Rizk, a protein engineer at Indiana University South Bend, science is a form of art and self-expression. In his lab, Rizk designs proteins that perform novel functions to create ...