Genome coding phytolacca antiviral protein and a recombinant expression vector therefor
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United States of America Patent
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Mar 3, 1998
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Jun 6, 1995
filing date -
Aug 28, 1993
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Abstract
The present inventors discovered a novel genome coding Phytolacca insularis antiviral protein(PIP) isolated from Phytolacca insularis Nakai; and developed a recombinant vector for said PIP genome expression and a microorganism transformed therewith. PIP genome of the present invention has nucleotide homology of about 82%, compared with the genome of Phytolacca americana antiviral protein isolated from Phytolacca americana L., which is closely related to the Phytolacca insularis Nakai. PIP cDNA is consist of 918 bp of one open reading frame and termination codon; and polyadenylation signal which is ubiquitous in mRNA of most plants and animals, appears to be located in the upstream of 33 bp from the polyadenylation site. Recombinant PIP of the invention was proved to inhibit the growth of E. coli HB101 transformed with said expression vector.
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