Amino acid replacement: G?R.
Mutation is in the first transmembrane domain.
abnormal neuroanatomy | third instar larval stage
embryonic/larval optic lobe | third instar larval stage
Mutants show premature loss of the optic lobe, with a swath of neuroblasts in the place of neuroepithelia and a fragmented neuropil in the third instar larval optic lobe.