title: The characterization and phylogenetic relationship of the Trichoplusia ni single capsid nuclear polyhedrosis virus polyhedrin gene.
abstract: The polyhedrin gene (polh) was identified from the Trichoplusia ni (Tni) single capsid nuclear polyhedrosis virus (SNPV). An EcoRI fragment containing the truncated polyhedrin gene was detected by hybridization with an AcMNPV expression vector probe; the remaining portion of the gene was amplified by reverse PCR. An open reading frame (ORF) of 741 nucleotides (nt), encoding a putative protein of 246 amino acids (a.a) with Mr 28,780 Da was identified. The 5'-noncoding region contained the putative late (TAAG) transcription initiation motif. The 3' end, downstream of the translation stop codon, lacked an obvious putative poly (A) signal. Nucleotide and amino acid homology are greater than 80% to that of Mamestra brassicae polyhedrin sequences. Results suggest that T. niSNPV is a member of the group II nuclear polyhedrosis viruses.
authors.affiliation: University of the Western Cape, Faculty of Science, Department of Microbiology, Bellville, South Africa. bertie@mbiol.uwc.ac.za
authors.forename: B C
authors.initials: BC
authors.lastname: Fielding
authors.forename: S
authors.initials: S
authors.lastname: Davison
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002213:Capsid / Q000235:genetics*; D007915:Lepidoptera / Q000821:virology*; D008969:Molecular Sequence Data; D017924:Nucleopolyhedroviruses / Q000235:genetics*; D000077183:Occlusion Body Matrix Proteins; D010802:Phylogeny; D016415:Sequence Alignment; D014764:Viral Proteins / Q000737:chemistry / Q000235:genetics*; D015678:Viral Structural Proteins
chemical_list: D000077183:Occlusion Body Matrix Proteins; D014764:Viral Proteins; D015678:Viral Structural Proteins; C009829:polyhedrin protein, Nucleopolyhedrovirus