Throwing a Wrench in Cancer's Gears (IMAGE) Cold Spring Harbor Laboratory Caption By generating a small protein fragment, or peptide (green square), shaped exactly like the surface where MYB, a cancer promoter, typically binds to a gene co-activator complex (green segment in long rectangle labeled TAF4, above), researchers prevent MYB from activating gene expression and promoting leukemia. Credit Vakoc Lab, CSHL 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.