The "GSd464" line contains two insertions (P{GSV1}GSd464a and P{GSV1}GSd464b) and it is not known which insertion is responsible for the lethality seen in combination with the Scer\GAL4scrt-11-6 driver. FlyBase curator comment: a GSd464GSd464 allele has been made to accommodate the overexpression phenotype, until it is known which (or both) insertions causes it.