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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1989-4-27
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pubmed:abstractText |
The restriction analysis has been used to establish that O-beta-diethylaminoethylhydroxylamine (OHA) produces modification of unpaired cytidines in the polylinker region adjacent to the Z-insert (dG-dC)10. (dG-dC)10 in the negatively supercoiled plasmid pGC20. The length of the transition region between B- and Z-portions of DNA is not less than 36 bps. The reaction of OHA with the unpaired cytidines in the B-Z junction is a fixing one and produces no secondary despiralling of the neighboring regions. The reaction with DNA proceeds much slower than the one with monomers and single-strand polynucleotides. The structural nonuniformity has been observed, which is manifested in the alternating B and "non-B" form DNA in the B-Z junction. It is suggested that these junctions may contain nucleotide sequences which are stable to violation of the B structure during the change in superhelical density of DNA.
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pubmed:language |
rus
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0208-0613
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
21-5
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2853301-Base Sequence,
pubmed-meshheading:2853301-DNA, Bacterial,
pubmed-meshheading:2853301-DNA, Superhelical,
pubmed-meshheading:2853301-DNA Restriction Enzymes,
pubmed-meshheading:2853301-Escherichia coli,
pubmed-meshheading:2853301-Molecular Sequence Data,
pubmed-meshheading:2853301-Plasmids,
pubmed-meshheading:2853301-Restriction Mapping
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pubmed:year |
1988
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pubmed:articleTitle |
[Unpaired bases in the B--Z junction of the supercoiled plasmid].
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pubmed:publicationType |
Journal Article,
English Abstract
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