Structural highlights
Function
ACB1_BPFBB Counteracts the host CBASS antiviral defense system. Phosphodiesterase that enables metal-independent hydrolysis of the host cyclic di- and trinucleotide CBASS signals such as 3'3'-cGAMP, 3'3'cUA, and 3'3'3'-cAAA (PubMed:35395152). Does not cleave cGG or cA4 (By similarity). Besides evasion of the CBASS system, might also enable evasion of the type III CRISPR systems that use cA3 signals (By similarity).[UniProtKB:P04533][1]
References
- ↑ Hobbs SJ, Wein T, Lu A, Morehouse BR, Schnabel J, Leavitt A, Yirmiya E, Sorek R, Kranzusch PJ. Phage anti-CBASS and anti-Pycsar nucleases subvert bacterial immunity. Nature. 2022 May;605(7910):522-526. PMID:35395152 doi:10.1038/s41586-022-04716-y
