Figure 1 (IMAGE) Institute for Basic Science Caption Trabectedin, an anti-cancer drug originally isolated from the sea squirt Ecteinascidia turbitana, is known to form cytotoxic DNA adducts. It is used to treat sarcomas and ovarian cancers and, in contrast to most antitumor agents, exerts its full activity in cells with active DNA repair. Credit Institute for Basic Science Usage Restrictions Attribution Required License Original 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.