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POLG2 DNA polymerase gamma 2, accessory subunit

Also known as: HP55; POLB; PEOA4; POLGB; MTPOLB; POLG-BETA

Summary

This gene encodes the processivity subunit of the mitochondrial DNA polymerase gamma. The encoded protein forms a heterotrimer containing one catalytic subunit and two processivity subunits. This protein enhances DNA binding and promotes processive DNA synthesis. Mutations in this gene result in autosomal dominant progressive external ophthalmoplegia with mitochondrial DNA deletions.[provided by RefSeq, Sep 2009]

Genomic context

Location:
17q23.3
Sequence:
Chromosome: 17; NC_000017.11 (64477785..64497066, complement)
Total number of exons:
11

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