Characterizations of natural and induced polyhedrin gene mutants of Bombyx mori cytoplasmic polyhedrosis viruses.
Bombyx mori cytoplasmic polyhedrosis virus (BmCPV) polyhedrin gene from natural mutant strain B, B2 and P was cloned and the amino acid sequence was compared with that of wild-type virus (strain H). Chimeric polyhedrin genes (8 types) containing only one site of mutation within the amino acid sequence were also constructed. Fifteen types of polyhedrin genes were introduced into a baculovirus expression vector and hexahedral, acicular, pyramidal, or amorphous polyhedra were formed in infected cells. These results demonstrated that the shape of polyhedra as well as the crystallization pattern of the polyhedrin could be changed by mutations at respectively N-terminal and C-terminal regions of BmCPV polyhedrin gene.
Ikeda
K
K
Department of Applied Biology, Faculty of Textile Science, Kyoto Institute of Technology, Japan.
Nakazawa
H
H
Alain
R
R
Belloncik
S
S
Mori
H
H
D000818:Animals; D001483:Base Sequence; D012831:Bombyx / Q000821:virology*; D002460:Cell Line; D008969:Molecular Sequence Data; D009154:Mutation; D000077183:Occlusion Body Matrix Proteins; D012087:Reoviridae / Q000235:genetics*; D018411:Spodoptera; D014764:Viral Proteins / Q000235:genetics*; D015678:Viral Structural Proteins
D000077183:Occlusion Body Matrix Proteins; D014764:Viral Proteins; D015678:Viral Structural Proteins; C009829:polyhedrin protein, Nucleopolyhedrovirus