A deletion ending at nucleotide 47 of the predicted Rheb transcript (ATG is at 327 by this numbering) and starting in the upstream gene CG12746 at nucleotide 12 (ATG is at 154 by this numbering), resulting from imprecise excision of P{GS}RhebGSjE2. The gene sitting between these two (CG2931) is also deleted. (deletion is 124396-128284 by the numbering of GenBank:AE003602.3).