Exonuclease V, a RecBCD complex from E. coli has several different enzyme activities, including an ATP-dependent single-stranded DNA endonuclease activity, ss- and ds- DNA exonuclease activity. The hydrolysis in each case is bi-directional (from both the 3´ and 5´ ends) and processive, producing oligonucleotides (1,2,3). All Exonuclease V activities have divalent cation requirements. Mg2+ is required for the exonuclease activity, while Ca2+ inhibits the exonuclease activity and allows double-stranded DNA unwinding (helicase activity) without hydrolysis (4,5).
Product Source
An E. coli strain containing plasmids for expressing the three subunits of E. coli Exonuclease V: RecB, RecC and RecD.
This product is related to the following categories:
Exonucleases and Non-specific Endonucleases Products