P{EP}Grip71GE30807 is inserted in the 5' untranslated mRNA region at position 49 from the translation initiator ATG.
The majority of homozygous or hemizygous Grip71GE30807 mutants reach adult stage. However, they exhibit a shorter life, morphological abnormalities, and female sterility. A fourfold increase in the mitotic index, an accumulation in prometaphase stages associated with a significant hypercondensation of chromosomes and a high incidence of disorganised or monopolar spindles are observed in L3 larval brains. Moreover, mutant neuroblasts exhibit a 12% increase in aneuploidy versus wild-type brains, suggesting that spindles without Grip71 are not full functional.
Grip163GE27087, Grip71GE30807 has lethal phenotype
Synthetic lethality is observed when Grip163GE27087 and Grip71GE30807 are combined in the same genotype.