Essential constituents of the 3'-phosphoesterase domain of bacterial DNA ligase D, a nonhomologous end-joining enzyme.


DNA ligase D (LigD) catalyzes end-healing and end-sealing steps during nonhomologous end joining in bacteria. Pseudomonas aeruginosa LigD consists of a central ATP-dependent ligase domain fused to a C-terminal polymerase domain and an N-terminal 3'-phosphoesterase (PE) module. The PE domain catalyzes manganese-dependent phosphodiesterase and… (More)


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