Imprecise excision of the progenitor insertion, resulting in a deletion which removes part of the Claspin gene (nucleotides +3757 to +5195 relative to the transcription start site are removed).
Deletion resulting from the imprecise excision of P{EP}GE20270, extending from +3757 to +5195, where +1 is the translation start of Claspin.
Eggs laid by homozygous females show a low rate of hatching (14.1%) compared to eggs laid by wild-type females.
Claspinaq4 is a suppressor | partially of egg chamber phenotype of Rpp30k01901/Rpp3018.2