Scientists have found new proteins that can edit genes

We are talking about an enzyme that cuts DNA: it originated from bacteria and can now work in cells

person.The latter property is especially useful for future developments of gene editing methods. Another plus is its small size, about 30% of the volume. Cas9 is another enzyme that can cut DNA. 

The new discovery confirms that naturalRNA-guided enzymes are some of the most abundant proteins on earth and this is a whole new field of biology that will help revolutionize genome editing technology.

These kinds of enzymes can be adapted for different applications, for example, they can be directed to a specific target in the body in order to destroy it. 

The first hints that OMEGA proteins can be usedcontrolled by RNA, appeared in the genes of the IscBs proteins. These proteins are not involved in CRISPR immunity and are not associated with RNA, but they appear to be small enzymes that cut DNA. The authors of the new paper found that each IscB protein had a small RNA coded nearby that directed the IscB enzymes to cut specific DNA sequences. 

Researchers believe that IscBs and otherssimilar proteins are the precursors of the Cas9 and Cas12 CRISPR systems. The authors point out that these proteins also gave rise to other RNA-controlled enzymes, but scientists just haven't found them yet.

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