The intracellular domain of grk has been replaced with the short cytoplasmic tail of CHOp24, amino acids 194-208.
cni1, grk::CHOp24CHOp24intra.cBa has egg phenotype
Eggs laid by homozygous cni1 females containing one copy of grk::CHOp24CHOp24intra.cBa exhibit normal anterior-posterior polarity, although some eggs are partially ventralised.