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An international team of scientists recently unveiled a new CRISPR -based tool capable of shredding long portions of targeted DNA strands. The new technique provides advantages over previous methods and could potentially lead to a cure for viral diseases such as herpes and hepatitis-C. The new tool is called Type I CRISPR-Cas3. It’s a long-range DNA targeting and editing tool – it can delete longer sections of DNA than its predecessor, the Type II CRISPR–Cas9. The “Type I” and “Type II” distinctions indicate which kind of CRISPR bacteria DNA the tools are based on. The Cas3 version is the only CRISPR tool utilizing Type I, which is more commonly found in bacteria than Type II CRISPR DNA. ... Full story

21 April