Fig. 1: Naturally occurring transpositions of IS elements into CRISPR-Cas loci.
From: Insertion sequence transposition inactivates CRISPR-Cas immunity
Representative examples of each IS element found in CRISPR-Cas loci are shown. Arrows represent ISs (marked by asterisks) and genes within the CRISPR-Cas clusters, with arrow orientation indicating the direction of IS insertion or gene transcription. Genomic coordinates beneath the species names indicate the range of each cas cluster, with the numbered lines indicating the relative position of each gene or IS within the corresponding region. All 28 of the identified naturally occurring transposition events are listed in Fig. S1.
