DNA transposon

DNA transposons are a group of transposable elements (TEs) that can move in the DNA of an organism via a single- or double-stranded DNA intermediate.

There are autonomous, as well as nonautonomous DNA transposons. The former use the enzymatic machinery of the latter for their amplification in a genome. It is estimated, that there are around 300,000 copies of DNA transposon fossils in the human genome and they make up around 3  % of it.

There are nine superfamilies of DNA Transposons defined. The following is a list of these superfamilies, with some group members:

Today, there are no active DNA Transposons in the human genome anymore. Therefore, the elements found in the human genome are called "fossils".

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