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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1990-12-10
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pubmed:abstractText |
We demonstrate the feasibility of targeted gene replacement at an endogenous, chromosomal gene locus in cultured mammalian cells, employing a two-step strategy similar to an approach routinely used for genetic manipulation in yeast. Utilizing an APRT+ recombinant generated by targeted integration of plasmid sequences (including a functional copy of the gpt gene) at the CHO APRT locus, we have been able to select gpt- "pop-out" recombinants that have arisen by intrachromosomal recombination between APRT direct repeats at the targeted integration site. Reciprocal exchanges leading to "pop-out" of integrated plasmid/gpt gene sequences occur at a rate of approximately 6.3 x 10(-6) per cell generation. Depending on the site of crossover, such "pop-out" events result in either replacement or restoration of the original APRT target gene sequence.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0740-7750
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
16
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pubmed:geneSymbol |
gpt
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
437-41
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2237639-Adenine,
pubmed-meshheading:2237639-Adenine Phosphoribosyltransferase,
pubmed-meshheading:2237639-Animals,
pubmed-meshheading:2237639-Blotting, Southern,
pubmed-meshheading:2237639-Cell Line,
pubmed-meshheading:2237639-Chromosome Deletion,
pubmed-meshheading:2237639-Cricetinae,
pubmed-meshheading:2237639-Cricetulus,
pubmed-meshheading:2237639-Drug Resistance,
pubmed-meshheading:2237639-Female,
pubmed-meshheading:2237639-Genetic Engineering,
pubmed-meshheading:2237639-Mutagenesis, Site-Directed,
pubmed-meshheading:2237639-Ovary,
pubmed-meshheading:2237639-Recombination, Genetic,
pubmed-meshheading:2237639-Thioguanine
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pubmed:year |
1990
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pubmed:articleTitle |
Targeted gene replacement at the endogenous APRT locus in CHO cells.
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pubmed:affiliation |
University of Texas M.D. Anderson Cancer Center, Science Park-Research Division, Smithville 78957.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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