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Cas4–Cas1 Is a Protospacer Adjacent Motif–Processing Factor Mediating Half-Site Spacer Integration During CRISPR Adaptation

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The Cas4-Cas1-Cas2 complex mediates precise prespacer processing during CRISPR adaptation

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Understanding the role of Cas4 during adaptation in CRISPR‐Cas immune systems

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Cas4 Facilitates PAM-Compatible Spacer Selection during CRISPR Adaptation

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Structural and biochemical characterization of Cas4 containing adaptation complexes in type I-C and I-G CRISPR-Cas immune systems

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