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Object

Cas9

A yellow, textured object resembling a molecular structure with a long central rod and branching segments, likely representing the Cas9 enzyme.

An RNA-guided endonuclease enzyme, originally isolated from the bacterium Streptococcus pyogenes, that uses a short guide RNA to locate a matching DNA sequence and cut both strands at that spot. It is the cutting half of the CRISPR-Cas9 editing system. Related enzymes — Cas12 cuts staggered DNA ends, Cas13 cuts RNA — have since expanded the toolkit considerably.

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