Construct: Amino acid replacement: D433E. Amino acid replacement: A434G. These amino acid changes are to those that are found in the equivalent residues in βTub85D.
βTub56Dβ1-β2.ii, βTub85Dn has spermatid axoneme phenotype
The addition of βTub56Dβ1-β2.ii to βTub85Dn homozygotes leads to almost wild-type axoneme morphology in the testis - in distal sections however many axonemes lose any discernable organisation.