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  • Title: Characterization of baculovirus-expressed hemagglutinin and fusion glycoproteins of the attenuated measles virus strain AIK-C.
    Author: Takehara K, Hashimoto H, Ri T, Mori T, Yoshimura M.
    Journal: Virus Res; 1992 Nov; 26(2):167-75. PubMed ID: 1476005.
    Abstract:
    With measles virus cDNA of the avirulent vaccine strain AIK-C, two cDNAs of H or F genes were amplified by the polymerase chain reaction. The amplified cDNAs were inserted respectively to the baculovirus transfer vector pAcYM1 derived from the nuclear polyhedrosis virus of Autographa californica (AcNPV). After co-transfection of the transfer vectors with AcNPV DNA to Spodoptera frugiperda cells, recombinant baculoviruses were screened by plaque assay, and the viruses containing H-cDNA or F-cDNA were named H-AIK or F-AIK, respectively. By Western blot analyses, the band around 80 kDa and some smaller bands were appeared in the H-AIK infected S. frugiperda cells, and the band around 40 kDa was detected in the F-AIK infected cells. Immunofluorescence studies on unfixed S. frugiperda cells infected with H- or F-AIK recombinants showed that both antigens were transported to the cell surface. When green monkey red blood cells were added to the recombinant infected cells, H-AIK infected cells showed haemadsorption, and cells infected with F-AIK lysed the red blood cells. The recombinant proteins elicited the neutralizing antibodies against measles virus.
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