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anti-CBASS protein Acb1 family protein
This family includes Anti-CBASS protein Acb1 which which counteracts or regulates the endogenous CBASS (cyclic oligonucleotide-based antiphage signalling system) antiviral defense system. It is a phosphodiesterase that enables metal-independent hydrolysis of the cyclic di- and trinucleotide CBASS signals [1]. [1]. 35395152. Phage anti-CBASS and anti-Pycsar nucleases subvert bacterial. immunity.. Hobbs SJ, Wein T, Lu A, Morehouse BR, Schnabel J, Leavitt A,. Yirmiya E, Sorek R, Kranzusch PJ;. Nature. 2022;605:522-526. (from Pfam)
phage-associated protein, HI1409 family
This HMM describes an uncharacterized family of proteins found in prophage regions of a number of bacterial genomes, including Haemophilus influenzae, Xylella fastidiosa, Salmonella typhi, and Enterococcus faecalis. Distantly related proteins can be found in the prophage-bearing plasmids of Borrelia burgdorferi.
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