Deletion of sequence encoding the gro CcN domain.
Flies carrying groΔCcN in a wild-type background are weak and show wing blistering and abnormal abdominal segmentation.
groΔCcN fails to rescue groMB36
groΔCcN fails to rescue groMB12
groΔCcN fails to rescue the lethality of groMB12 and groMB36 homozygotes.