An artist’s rendering depicts a chain of repeating green glucose molecules in cellulose being broken down by the newly discovered fungus Anaeromyces robustus. The rodlike element at the bottom and the yellow parts represent the scaffoldin protein, while the bronze-colored trapezoids with vertical extenders are the dockerin protein domains, which allow the various types of enzymes (shown as gemlike elements) to work together in assembly-line fashion to break down the cellulose.