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Taq polymerase is an enzyme that is used by scientists in the polymerase chain reaction because it is stable at high temperatures. It is the polymerase used by a bacteria, Thermus auquatics, which... Taq polymerase is an enzyme that is used by scientists in the polymerase chain reaction because it is stable at high temperatures. Large amounts of a sample of DNA are necessary for molecular and genetic analyses, and the polymerase chain reaction is used to amplify very small amounts of DNA.
Such is the history of Taq DNA polymerase. The original report of this enzyme, purified from the hot springs bacterium Thermus aquaticus, was published in 1976. Roughly 10 years later, the polymerase chain reaction was developed and shortly thereafter Taq became a household word in molecular biology circles.Currently, the world market for Taq polymerase is in the hundreds of millions of dollars each year.oughly 10 years later, the polymerase chain reaction was developed and shortly thereafter Taq became a household word in molecular biology circles. Currently, the world market for Taq polymerase is in the hundreds of millions of dollars each year.