Cyclothiazomycin C (image) Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign Share Print E-Mail Caption The antibiotic cyclothiazomycin C resembles a "Do Not" sign. This novel antibiotic, discovered by the Doug Mitchell Lab at the University of Illinois, is effective against gram-positive bacteria. Credit Photo provided by Doug Mitchell lab. Usage Restrictions None Share Print E-Mail 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.