FIG. 2.

Schematic representation of the diversity of type IV CRISPR-Cas systems in Acidithiobacillia class species and strains. The core type IV-A genes are shown by arrows, and CRISPR arrays are shown as diamonds. The genes are not shown to scale. On the right side, the Seqlogos (constructed using WebLogo interface https://weblogo.berkeley.edu/logo.cgi) of the repeats in all arrays in the respective type IV-locus are shown. CRISPR arrays found elsewhere in the genome or in unassembled contigs are separated by a slash.