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Fig. 3 | Genome Biology

Fig. 3

From: PAM-repeat associations and spacer selection preferences in single and co-occurring CRISPR-Cas systems

Fig. 3

Relationship between repeat and PAM sequence. A Schematic of the analysis of PAM and repeat sequence. The nucleotide identity of the PAM in each position is compared to the nucleotide of the repeat. B PAM nucleotide frequency for type I repeats. For each given repeat nucleotide position (indicated with colored boxes), the PAM nucleotide (pie chart) for each unique PAM-repeat combination of our database. The number of occurrences is indicated above the pie chart (n). C The frequency of matches (red) and mismatches (gray) between the PAM and the corresponding repeat nucleotide for each position in relation to the spacer. For type II, the positions are compared on the other side of the spacer

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Genome Biology

ISSN: 1474-760X

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