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  • Title: [Comparative biochemical studies of polyhedral proteins of nuclear polyhedrosis viruses].
    Author: Kozlov EA, Levitina TL, Gusak NM, Larionov GV, Veremeĭchenko SN.
    Journal: Biokhimiia; 1978 Dec; 43(12):2189-95. PubMed ID: 33725.
    Abstract:
    Using disc polyacrylamide gel electrophoresis, the molecular weights of polyhedral proteins of nuclear polyhedrosis viruses (NPV) of Porthetria dispar, Mamestra brassicae, and Aporia crataegi were found to be 28000 +/- 3000. It was shown that NPV polyhedra of Bombyx mori, Galleria mellonella, P. dispar, and M. brassicae contain a protease. During dissolution of the polyhedra at pH 10,5 this protease specifically cleaves the matrix protein into 2--5 fragments. The amino acid compositions of NPV polyhedral proteins of P. dispar, M. brassicae, A. crataegi, Hyphantria cunae were shown to be very similar. It was found that tyrosine is a C-terminal amino acid of NPV polyhedral proteins of P. dispar, M. brassicae, and A. crataegi.
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