The POLG gene provides instructions for making the active piece, called the alpha subunit, of a protein called polymerase gamma (pol γ). To be most effective, the alpha subunit attaches to two copies of another protein called the beta subunit to form pol γ. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.