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Structures of human DNA polymerase g (left) and T7 phage DNA polymerase (right) holoenzymes

Structures of human DNA polymerase g (left) and T7 phage DNA polymerase (right) holoenzymes
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Description: Both enzymes are shown complexed with DNA.

The pol g structure shows two unique domains (IP and AID, shown in gold), which are involved in DNA binding.

Note the similarity in location of the polymerase and 3’ exonuclease catalytic domains.

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Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34967
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