UASt regulatory sequences drive expression of a cDNA encoding the Chchd2-PA isoform, mutated to carry a S81L amino acid replacement (this change is equivalent to a S59L change in the human CHCHD10 gene, a pathogenic variant associated with frontotemporal lobar degeneration and amyotrophic lateral sclerosis). The coding sequence is tagged at the C-terminal end with Tag:V5.
C17150028T
S81L | Chchd2-PA; S33L | Chchd2-PB
S81L
Analogous S59L mutation in human CHCHD10 implicated in frontotemporal dementia and/or amyotrophic lateral sclerosis 2; mutation carried on in vitro construct; site of nucleotide substitution in fly gene inferred by FlyBase curator based on reported amino acid change.
Expressing Chchd2S81L.UAS.PA.Tag:V5 under the control of Scer\GAL4da.G32 leads to adult flight muscle mitochondria to progressively show a swirl morphology or less cristae (observed at day 30 but not at day 2).
Chchd2S81L.UAS.PA.Tag:V5 is partially rescued by Scer\GAL4da.G32/Chchd2UAS.PA.Tag:V5