Analysis of the Genome of the Sexually Transmitted Insect Virus Helicoverpa zea Nudivirus 2
AbstractThe sexually transmitted insect virus Helicoverpa zea nudivirus 2 (HzNV-2) was determined to have a circular double-stranded DNA genome of 231,621 bp coding for an estimated 113 open reading frames (ORFs). HzNV-2 is most closely related to the nudiviruses, a sister group of the insect baculoviruses. Several putative ORFs that share homology with the baculovirus core genes were identified in the viral genome. However, HzNV-2 lacks several key genetic features of baculoviruses including the late transcriptional regulation factor, LEF-1 and the palindromic hrs, which serve as origins of replication. The HzNV-2 genome was found to code for three ORFs that had significant sequence homology to cellular genes which are not generally found in viral genomes. These included a presumed juvenile hormone esterase gene, a gene coding for a putative zinc-dependent matrix metalloprotease, and a major facilitator superfamily protein gene; all of which are believed to play a role in the cellular proliferation and the tissue hypertrophy observed in the malformation of reproductive organs observed in HzNV-2 infected corn earworm moths, Helicoverpa zea.
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Burand, J.P.; Kim, W.; Afonso, C.L.; Tulman, E.R.; Kutish, G.F.; Lu, Z.; Rock, D.L. Analysis of the Genome of the Sexually Transmitted Insect Virus Helicoverpa zea Nudivirus 2. Viruses 2012, 4, 28-61.
Burand JP, Kim W, Afonso CL, Tulman ER, Kutish GF, Lu Z, Rock DL. Analysis of the Genome of the Sexually Transmitted Insect Virus Helicoverpa zea Nudivirus 2. Viruses. 2012; 4(1):28-61.Chicago/Turabian Style
Burand, John P.; Kim, Woojin; Afonso, Claudio L.; Tulman, Edan R.; Kutish, Gerald F.; Lu, Zhiqiang; Rock, Daniel L. 2012. "Analysis of the Genome of the Sexually Transmitted Insect Virus Helicoverpa zea Nudivirus 2." Viruses 4, no. 1: 28-61.