Data and code availability
The structures of the L7TIR-dsDNA initial state complex, intermediate state complex and end state complex were deposited in the Protein Data Bank (PDB) with PDB code: 7X5K, 7X5L, 7X5M, respectively. In the end state complex, a 2’,3’-cAMP bound L7TIR protomer was deposited in PDB with PDB code: 7VU8. This paper does not report original code. Any additional information required to reanalyze the data reported in this work paper is available from the lead contact upon request.