List of selected CRISPRs discussed in the paper.

aThe IDs of the CRISPRs are assigned using the following rules: 1) If a CRISPR (e.g., SmutaL36) is identified from a known complete/draft genome with species name (for SmutaL36, the genome is Streptococcus mutans NN2025), its ID uses five letters from the species name (i.e., Smuta) followed by the length of the repeats (length of 36 is shown as L36); 2) If a CRISPR (Neis_t014_L28) is identified from a known complete/draft genome that has only general genus information (e.g., Neisseria sp. oral taxon 014 str. F0314), then its ID is four letters from the genus name, followed by the taxon ID, and the length of the repeats; and 3) the CRISPRs identified in the HMP datasets are named as the ID of the datasets followed by the length of repeat.