Konstantin Severinov’s group has published a novel paper “Prespacers formed during primed adaptation associate with the Cas1–Cas2 adaptation complex and the Cas3 interference nuclease–helicase” in PNAS! The scientists have shown that short fragments of foreign DNA on their way to become incorporated into CRISPR arrays as spacers, are associated with both the adaptation integrase Cas1 and the interference nuclease Cas3. Congratulations! Full text of the paper is available here.