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Researchers create mirror image of DNA-copying protein

Scientists at Tsinghua University in Beijing have created a mirror-image version of a protein responsible for two life-critical functions:, copying DNA and transcribing it into RNA
•    Crucial step in someday making reverse-versions of molecules that could be more resistant to viral attacks.
•    Have to build their own reverse version of the DNA polymerase that coordinates copying, which drastically slowed down the process. 
•    Scientists have been making mirror images of DNA for years, so the Tsinghua researchers were able to order many parts of their experiment, but they did have to build their own reverse version of the DNA polymerase that coordinates copying, which drastically slowed down the process. 
•    That will need to speed up to make the process financially rewarding, but biochemical companies are already looking at the lucrative potential for mirror-image molecules, which could more efficiently operate inside the body without being degraded by enzymes that break down typically-oriented molecules.