The Texas A&m University System

Other

Linda A Guarino

Donald L Jarvis

Jianping Jin

Wen Dong

The present invention relates to the use of baculovirus RNA polymerase for the production of capped and polyadenylated transcripts in vivo and especially in vitro. More particularly, the purified RNA polymerase of the present invention may be used to produce in vitro transcription and/or in vitro transcription/translation kits.

In vitro synthesis of capped and polyadenylated mRNAs using baculovirus RNA polymerase

This invention details a novel and unique plasmid vector for the dual purposes of either producing transformed insect cell clones or recombinant baculoviruses. The transformed insect cell clones will continuously and permanently produce an efficiently processed desired foreign gene product. The recombinant baculoviruses will transiently express the desired foreign gene during immediate early phase of infection. This unique vector employs promoters from two different immediate early baculovirus genes along with the natural occurring polyhedrin promoter and gene. This unique combination creates a situation where the virus is highly infectious in vivo and resistant to inactivation in nature, because it is occlusion positive, and expresses the foreign gene product during immediate early phase of infection. Therefore this virus would be very effective as a delivery system of pesticides.

Use of baculovirus early promoters for expression of foreign genes in

The present invention provides an alternative strategy for baculovirus-mediated foreign gene expression: the promoters from immediate-early or delayed-early baculovirus viral genes were used to obtain the continuous expression of foreign genes in stably-transformed insect cells. The IE1 or the 30K promoters from Autographa californica nuclear polyhedrosis virus can drive the continuous expression of a foreign gene in insect cells. IE1-.beta.-galactosidase or 39K-.beta.-galactosidase constructs were used in combination with the IE1-neomycin resistan

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Bryan, TX, United States of America

Linda A Guarino