Funnel (IMAGE) Ruhr-University Bochum Caption This is a schematic diagram of the hydration funnel in an enzyme-substrate complex (the protein is depicted in grey, its binding partner in green, and the funnel in yellow). Credit Havenith/Conti Nibali Usage Restrictions None 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.