Localization by fluorescence in situ hybridization (FISH) of human mitochondrial polymerase γ (POLG) to human chromosome band 15q24→q26, and of mouse mitochondrial polymerase γ (Polg) to mouse chromosome band 7E, with confirmation by direct sequence analysis of bacterial artificial chromosomes (BACs)
Description
Cloned cDNAs for the human mitochondrial DNA polymerase γ (POLG) were identified by homology with the yeast mitochondrial DNA polymerase catalytic subunit (MIP). Fluorescence in situ hybridization (FISH) of human and mouse bacterial artificial chromosomes (BACs), hybridized by radioactively labeled POLG cDNAs, mapped to human chromosome band 15q24→q26, as well as to mouse chromosome band 7E. Direct sequencing of the BAC DNA without subcloning confirmed the presence of both human POLG and mouse mitochondrial DNA polymerase γ (Polg) in the respective BACs.
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