The Z-flipon (IMAGE) InsideOutBio Caption The Z-flipon switches from the left-handed Z-DNA conformation (ON) to the Right-handed Watson-Crick B-DNA (OFF) in active genes. A different protein is produced without mutating the coding sequence. Credit Alan Herbert Usage Restrictions Credit Alan Herbert 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.