Nucleotide Sequence and Characterization of the p10 Gene of Spodoptera litura Nuclear Polyhedrosis Virus.

Sheng Wu Hua Xue Yu Sheng Wu Wu Li Xue Bao (Shanghai)

State Key Laboratory for Biocontrol and Institute of Entomology, Zhongshan University, Guangzhou 510275, China.

Published: January 1998

AI Article Synopsis

  • - The p10 gene of SINPV is located within a 3.0 kbp fragment and is notable for being the longest p10 gene identified in NPVs, with a coding sequence of 318 nucleotides that translates to a protein of 105 amino acids.
  • - The promoter region of the SINPV p10 gene features unique A/TTTGTA motifs and the protein is likely to have a large coiled-coil structure due to the presence of 10 heptad repeats.
  • - The genetic organization of the SINPV p10 gene and its nearby open reading frames (ORFs) is collinear with that of SpliNPV, suggesting a close evolutionary relationship between SINPV and SpliNPV,

Article Abstract

The p10 gene was localized within the 3.0 kbp BamH I fragment of the SINPV genome. With a coding sequence of 318 nucleotides, corresponding to a protein of 105 amino acids, the p10 gene of SINPV is the longest p10 gene identified so far in NPVs. The SINPV p10 gene is also distinct in having two A/TTTGTA motifs in the promoter region. With 10 heptad repeats, the SINPV P10 protein is probably forming a relatively large coiled-coil structure. The organization of SINPV ORF552-p10 gene-ORF945 cluster is collinear with that of SpliNPV and their corresponding amino acid sequences of each ORF share high similarity. This indicates that SINPV and SpliNPV belong to a homologous baculovirus group.

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