Learn how to use this product The RTS pIX4.0 Insect Vector is designed and suited for cloning genes into its multiple cloning sites. The vector contains a T7 transcription promoter, efficient untranslated regions specific for the insect expression system, and additional elements allowing high-yield expression using the RTS 100 Insect Membrane and kits. The RTS pIX4.0 Insect Vector enables efficient initiation of translation through a T7 promoter element combined with an optimized 3' untranslated region, a T7 terminator, and an optimally positioned linearization site. The expression template is added to the in vitro transcription or coupled transcription/translation reactions.