History
The first DNA ligase was purified and characterized in 1967. The common commercially available DNA ligases were originally discovered in bacteriophage T4, E. coli and other bacteria.
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“A country grows in history not only because of the heroism of its troops on the field of battle, it grows also when it turns to justice and to right for the conservation of its interests.”
—Aristide Briand (1862–1932)
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—Francis Bacon (1561–1626)
“It takes a great deal of history to produce a little literature.”
—Henry James (1843–1916)