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Purification and characterization of human immunodeficiency virus type 1 nef gene product expressed by a recombinant baculovirus. 1991
Y Matsuura, and
M Maekawa, and
S Hattori, and
N Ikegami, and
A Hayashi, and
S Yamazaki, and
C Morita, and
Y Takebe
Department of Veterinary Science, National Institute of Health, Tokyo, Japan.
We have constructed the recombinant baculovirus which expresses the human immunodeficiency virus type 1 negative factor (nef) gene. Spodoptera frugiperda cells infected with the recombinant virus produced a 27-kDa protein which reacted with rabbit antisera raised against a carboxy-terminal synthetic peptide of the Nef protein by immunoblot analysis. Labeling experiment showed that the recombinant Nef protein was myristoylated. The recombinant Nef protein was purified to near homogeneity by DEAE-Sephacel, phenyl-Sepharose 4B, blue-Sepharose, and Sephadex G-150 column chromatography. No detectable GTP binding activity was observed in the purified recombinant Nef product.
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