A splice site mutation in Kpc2 affecting the splice donor site of a small coding exon contained in transcript C (2491 base pairs, 561 amino acids) and the testes-specific transcript B (1778 base pairs, 435 amino acids). The mutation results in the inclusion of the intron between exons 1 and 2, which is predicted to result in a novel protein and a premature stop codon after 61 amino acids. Transcript C is not detected in Kpc2Z2-5905 flies, presumably due to nonsense mediated decay.
After mating Kpc2Z2-5905 sperm does not reach the seminal receptacle and are restricted to the uterus.
Kpc2Z2-5905 is rescued by Kpc2+t6.3
Kpc2Z2-5905 is partially rescued by Kpc2Tag:V5