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  Domain Name: DNA_pol_gammaA
Pol gammaA is a family A polymerase that is responsible for DNA replication and repair in mitochondria. DNA polymerase gamma (Pol gamma), 5'-3' polymerase domain (Pol gammaA). Pol gammaA is a family A polymerase that is responsible for DNA replication and repair in mitochondria. Family A polymerase functions primarily to fill DNA gaps that arise during DNA repair, recombination and replication. DNA-dependent DNA polymerases can be classified into six main groups based upon phylogenetic relationships with E. coli polymerase I (classA), E. coli polymerase II (class B), E.coli polymerase III (class C), euryarchaeota polymerase II (class D), human polymerase beta (class X), E. coli UmuC/DinB and eukaryotic RAP 30/Xeroderma pigmentosum variant (class Y). Family A polymerases are found primarily in organisms related to prokaryotes and include prokaryotic DNA polymerase I, mitochondrial polymerase gammaA, and several bacteriophage polymerases including those from odd-numbered phage (T3, T5, and T7). The structure of these polymerases resembles in overall morphology a cupped human right hand, with fingers (which bind an incoming nucleotide and interact with the single-stranded template), palm (which harbors the catalytic amino acid residues and also binds an incoming dNTP) and thumb (which binds double-stranded DNA) subdomains. Pol gammaA has also the right hand configuration. Pol gammaA has both polymerase and proofreading exonuclease activities separated by a spacer. Pol gamma holoenzyme is a heterotrimer containing one Pol gammaA subunit and a dimeric Pol gammaB subunit. Pol gamma is important for mitochondria DNA maintenance and mutation of the catalytic subunit of Pol gamma is implicated in more than 30 human diseases.
No pairwise interactions are available for this conserved domain.

Total Mutations Found: 0
Total Disease Mutations Found: 0
This domain occurred 1 times on human genes (2 proteins).

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 The histograms below the weblogo indicate mutations found on the domain. Red is for disease (OMIM) and blue is for SNPs.

 Functional Features are displayed as orange boxes under the histograms. You can choose which features are displayed in the box below.

Range on the Protein:  

   Protein ID            Protein Position

Domain Position:  

Feature Name:Total Found:
active site
catalytic site
DNA binding site
heterodimer interface

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Please Cite: Peterson, T.A., Adadey, A., Santana-Cruz ,I., Sun, Y., Winder A, Kann, M.G., (2010) DMDM: Domain Mapping of Disease Mutations. Bioinformatics 26 (19), 2458-2459.

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