Taranenko, D., Kotovskaya, O., Kuznedelov, K., Yanovskaya, D., Demkina, A., Fardeeva, S., Mamontov, V., Vierra, K., Burman, N., Li, D., Wang, M., Wiedenheft, B., Severinov, K., Semenova, E., Isaev, A. (2026). A census of anti-CRISPR proteins reveals AcrIE9 and AcrIE13 as inhibitors of the Escherichia coli K12 type IE CRISPR-Cas system. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2529903123