5bp deletion near the N-terminal end of the RanGAP open reading frame. This results in a frameshifts.
G19445983T
E247term | RanGAP-PA; E247term | RanGAP-PB; E239term | RanGAP-PC
E?term
RanGAP9 homozygotes show a significant decrease in the number of central brain neuroblasts at the second instar larval stage.
RanGAP9 neuroblast clones in the third instar larval brain (clones induced at 4h AFH) show a severe reduction in cell number compared to controls, and progressively lose neuroblasts.