Tubes of GFP (IMAGE) Washington University School of Medicine Caption Tubes of green fluorescent protein glow more brightly when they contain more of the protein. Researchers at Washington University School of Medicine have found a way to increase protein production up to a thousandfold, a discovery that could aid production of proteins used in the medical, food, agriculture, chemical and other industries. Credit Sergej Djuranovic Usage Restrictions This image is to be used in accordance with the mission, policies and guidelines of Washington University in St. Louis. Visit https://wustl.edu/about/compliance-policies/media-policies/photo-use/ for more information. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.