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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1989-4-5
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pubmed:databankReference | |
pubmed:abstractText |
A method to introduce multiple mutations and to reconstruct genes, using a single oligodeoxyribonucleotide and DNA polymerase with high processivity, such as modified T7 DNA polymerase [Tabor and Richardson, Proc. Natl. Acad. Sci. USA 84 (1987a) 4767-4771], is described. A eukaryotic cDNA, coding for porcine growth hormone (pGH), was reconstructed in this study to delete 75 bp and to introduce a G----A transition. The deletion removes 75 bp and brings an ATG just upstream from the codon for the first amino acid in the mature protein. Moreover, the G----A substitution creates a new PvuII restriction site to facilitate further manipulation of the gene. Maximum mutation frequency with this multisite-directed mutagenesis is reached within 15 min with an efficiency approaching 50%, when using the modified T7 DNA polymerase. No multisite-directed mutants were obtained when T4 DNA polymerase or Klenow (large) fragment of DNA polymerase I were used. The described method is also applicable to simple single site-directed mutations as well as to more complex gene reconstruction strategies.
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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 |
0378-1119
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
69
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
81-9
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3224824-Animals,
pubmed-meshheading:3224824-Base Sequence,
pubmed-meshheading:3224824-Chromosome Deletion,
pubmed-meshheading:3224824-DNA-Directed DNA Polymerase,
pubmed-meshheading:3224824-Genes,
pubmed-meshheading:3224824-Growth Hormone,
pubmed-meshheading:3224824-Molecular Sequence Data,
pubmed-meshheading:3224824-Mutation,
pubmed-meshheading:3224824-Oligonucleotide Probes,
pubmed-meshheading:3224824-Pituitary Gland,
pubmed-meshheading:3224824-Plasmids,
pubmed-meshheading:3224824-Restriction Mapping,
pubmed-meshheading:3224824-Swine,
pubmed-meshheading:3224824-T-Phages
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pubmed:year |
1988
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pubmed:articleTitle |
A multisite-directed mutagenesis using T7 DNA polymerase: application for reconstructing a mammalian gene.
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pubmed:affiliation |
Department of Biological Chemistry, University of Michigan, Ann Arbor 48109-0606.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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