Hybrid viral plasmid and microorganisms containing same
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United States of America Patent
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Dec 31, 1985
Grant Date -
N/A
app pub date -
May 19, 1983
filing date -
May 19, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
pML BK is a hybrid plasmid which is constructed of :pML which contains the entire nucleotide sequence of the plasmid pBR322 except for deletion of nucleotide sequences 1120-2490 bp and 0 to 375 bp, and BK which contains the entire nucleotide sequence of the Gardner strain of BK virus except for deletion of nucleotide sequences between bp 5089-5196. Into the pML BK plasmid may be inserted a viral or human gene X to be expressed, an example of which is TK which represents the Bam HI generated 3,600 bp DNA fragment of herpes simplex virus type 1 which contains the herpes simplex virus type 1 TK DNA. The majority of the pML BK X DNA molecules remain in the episomal or free state in the human cells 143B and express the gene X.
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