The available PAM sequences for cyanobacterial species highlighted in this study for different Cas variants. Only species with full genomes available are shown. The Cas variants indicated are Streptococcus pyogenes Cas9 (SpCas9), Francisella novicida Cas12a (FnCas12a), Acidaminococcus sp. Cas12a (AcCas12a, and variants AsCas12a-RR and ASCas12a-RVR), Lachnospiraceae bacterium Cas12a (LbCas12a) and Deltaproteobacteria bacterium CasX (CasX). The average number of PAM sites (in brackets) per kb of genome are shown (N = A, T, C, G; V = A, C, G; Y = C, T). Genome data was sourced from The European Nucleotide Archive (https://www.ebi.ac.uk/ena) and The National Centre for Biotechnology Information (https://www.ncbi.nlm.nih.gov/genome).