Western Blotting: A Powerful Technique for Protein Analysis Western blotting, also known as protein immunoblotting, is a method used to detect specific proteins in a sample of tissue homogenate or extract. It uses gel electrophoresis to separate native or denatured proteins by the length of the polypeptide chains. The proteins are then transferred to a membrane, where they are stained with antibodies specific to the target protein. The antibodies are...