See Also: host restriction-modification(medicine)
DNA restriction-modification enzymes(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
modification(dictionary)
Modification(medicine)
DNA modification(medicine)
MODIFICATION(law)
modification(dictionary)
weather modification(encyclopedia)
modification (as used in expressions)(encyclopedia)

host restriction-modification (medicine)


host restriction-modification


A bacterial system where the bacterium is able to destroy invading DNA from a bacteriophage (virus which infects bacteria) while at the same time preventing the destruction of their own DNA. The phage DNA is cleaved by a restriction enzyme made by the bacterium, the bacterial DNA is modified (usually with methylation) so that the enzyme will not destroy it.