Makarova KS, Wolf YI, Iranzo J, et al. Evolutionary classification of CRISPR-Cas systems: a burst of class 2 and derived variants. Nat Rev Microbiol. 2020;18(2):67-83. doi:10.1038/s41579-019-0299-x
Galagan JE, Nusbaum C, Roy A, et al. The genome of M. acetivorans reveals extensive metabolic and physiological diversity. Genome Res. 2002;12(4):532-42. doi:10.1101/gr.223902