1.1kb HpaI BstXI fragment of gypsy, extending from nucleotides 1 to 1077, containing most of the transcriptional regulatory sequences drives the expression of lacZ.
HpaI BstXI fragment of gypsy 5' regulatory sequences (from position 2 to 1077bp) drives the expression of lacZ.
Expression of P{gypCaSpeR} construct can be regulated by flam.
1.1kb fragment of gypsy contains the cis-elements required for proper spatial and temporal expression of gypsy.