Artistic representation (IMAGE) The University of Hong Kong Caption Artistic representation of the work: cell membrane is like a vast, complex, and unpredictable ocean. The membrane proteins are the rocks and islands in the ocean. Labelling the membrane protein target with a DNA tag is like having a lighthouse on the target protein to direct the specific screening of DNA-encoded chemical libraries for drug discovery. Credit The University of Hong Kong 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.