Tags: Protein.
In molecular biology the YqaJ refers to the YqaJ/K domain from the skin prophage of the bacterium Bacillus subtilis. This protein domain often found in bacterial species is actually of viral origin. The protein forms an oligomer and functions as an alkaline exonuclease or in simpler terms an enzyme that digests double-stranded DNA. It is a reaction which is dependent on Magnesium. It has a preference for 5′-phosphorylated DNA ends.
