817bp deletion that removes exon 1 and part of exon 2 of MTPAP. The transcription start site, ATG start codon and the first in frame ATG codon at position 342 of the mRNA are all deleted. A single attP site, plus a loxP cassette containing the wGMR.PH marker have been inserted in place of the deleted sequence.
MTPAPKO homozygous larvae do not have any obvious differences in mitochondrial morphology, compared to controls.