A set of mutant stocks derived by insertional mutagenesis using the P-element construct P{PZ}; most lines have a lethal or sterile phenotype. The P{PZ} construct carries a ry[+] visible marker, Ecol\lacZ enhancer trap sequences, and bacterial sequences that allow plasmid rescue.
P{PZ}E2f07172 is inserted 33 nucleotides upstream of the E2f translation start and in the opposite orientation as E2f.