DNA Mismatch (IMAGE) Duke University Caption An overlay of six X-ray crystal structures of DNA shows that regular (Watson-Crick) and mismatched DNA are similarly bent by the transcription factor TBP. However, the mismatched DNA is highly preferred by the protein because it is easier to distort. Credit Maria Schumacher, Duke University 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.