Subject: DNA Polymerase Gamma Dear Dr. Ashburner, In response to your letter of September 13, 1996, the Drosophila melanogaster gene encoding DNA polymerase gamma that we describe in Genbank (accession number U60298) is the genomic sequence for the catalytic subunit (125 kDa) of the mitochondrial DNA polymerase. One note, your first reference that you included: DNApol-gamma 120 Chiang et al., 1993, Proc. Natl. Acad. Sci. USA 90(19): 9105-9109 is not for DNA polymerase gamma but is for DNA polymerase delta. Sincerely, Philip Ropp