Natural Full Color Sandstone
TN5 Transposase complexed with Transposon End DNA
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Product Description
Transposase is an enzyme that binds to the end of a transposon and catalyzes the movement of the transposon to another part of the genome by a cut and paste mechanism or a replicative transposition mechanism. The word "transposase" was first coined by the individuals who cloned the enzyme required for transposition of the Tn3 transposon. The existence of transposons was postulated in the late 1940s by Barbara McClintock, who was studying the inheritance of maize, but the actual molecular basis for transposition was described by later groups. McClintock discovered that pieces of the chromosomes changed their position, jumping from one chromosome to another. The repositioning of these transposons (which coded for color) allowed other genes for pigment to be expressed. Transposition in maize causes changes in color; however, in other organisms, such as bacteria, it can cause antibiotic resistance. Transposition is also important in creating genetic diversity within species and adaptability to changing living conditions. During the course of human evolution, as much as 40% of the human genome has moved around via methods such as transposition of transposons.
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TN5 Transposase
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