, 2005), using all possible translation frames of each cDNA. The sequence of the respective cDNA was used for primer design and further cDNA amplification by PCR. Restriction sites were also included in the primer sequence for further ligation in the plasmid pFastBac1™ (Invitrogen), as well as a His-tag sequence. Antiviral response of the baculovirus has been reported in the literature (Gronowski et al., 1999) and the mTOR inhibitor histidine tag can stimulate the

immune system response (Masek et al., 2011). Therefore, we also amplified and cloned sequences of two other proteins (LOH-19-AY829833 and 8-LOH) that have molecular weights similar to the protein with the histidine sequence, to confirm that the protective effects observed in the results would be due to the action of the antiviral protein from L. obliqua (20-LOH-JN807330) and not a response Etoposide order of the immune system to the His-tag sequence ( Masek et al., 2011 and Veiga et al., 2005). A L. obliqua caterpillar specimen was cross-sectioned in the middle, the extremities were cut off and RNA was extracted from the remaining portion with Trizol (Invitrogen) according to

the Manufacturer’s instructions. The RNA was stored at −80 °C until use. The first-strand cDNA was synthesized using Oligo(dT)18 Primer (Fermentas) and Superscript III reverse transcriptase (Invitrogen). For amplification of the sequence of interest, PCRs consisting of 12.5 μl PCR Master Mix (Promega), 200 ng of cDNA and 10 μM of each specific primer were carried out in a thermocycler under the following reaction conditions: initial cycle at 94 °C for 3 min; 35 cycles at 94 °C for 1 min and 30 s, a temperature gradient ranging from 45 °C

to 55 °C for 1 min and 30 s, and 72 °C for 1 min and 30 s; final extension at 72 °C for 10 min. Amplification products were analyzed by electrophoresis in 1% agarose gel containing ethidium bromide (1 μg/ml). The pFastBac1™ donor vector (Invitrogen™) was used in a first cloning step. For cloning Linifanib (ABT-869) reactions, both the vector and the amplified cDNAs were digested with BamHI and HindIII restriction enzymes. After overnight incubation at 16 °C, the ligation reaction was employed in the transformation of E. coli DH5α (Invitrogen™). Bacteria were grown on plates containing LB medium and ampicillin (100 μg/ml). Twenty colonies were selected for growth in liquid Luria–Bertani (LB) containing ampicillin (100 μg/ml). For selection of colonies containing the recombinant donor plasmid, cultures were analyzed by PCR using the primers specific for the cDNA of the antiviral protein and other proteins. Agarose gel electrophoresis (1%) was performed to verify the amplified products. To confirm that the insert was appropriately ligated into the cloning vector, clones screened by PCR and restriction enzyme digestion were also subjected to sequence analyses with primers Seq Forward pFastBac1TM (5′-AAATGATAACCATCTCGC-3′) and Seq Reverse pFastBac1TM (5′-CAAGCAGTGATCAGATCCAGACAT-3′).