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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
18
|
pubmed:dateCreated |
1982-1-20
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pubmed:abstractText |
The covalently closed circular duplex deoxyribonucleic acid (DNA) of phi X174 underwent progressive conversion to nicked and linear DNA with increasing bleomycin/phi X174 RFI DNA molecule ratios. The formation of linear DNA (a double-strand break) occurred under limited reaction conditions as low as an average of 0.2 single-strand break/phi X174 RFI DNA molecule. As bleomycin-produced linear DNA was further fragmented by bleomycin, a broad distribution of DNA fragments without notable concentrations of unique size was formed. Restriction enzymes PstI and SstII did not generate discrete fragments from bleomycin-produced full-length linear phi X174 DNA, nor did bleomycin cleavage generate discrete fragments from HpaII or PstI digests of phi X174 RFI. These findings suggest that bleomycin does not act at a few specific sites on phi X174 RFI DNA. The single-strand nick appeared to be the preferred site for bleomycin action for a second cleavage in a phi X174 molecule.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Sep
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pubmed:issn |
0006-2960
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
1
|
pubmed:volume |
20
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
5331-6
|
pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:6170322-Bacteriophage phi X 174,
pubmed-meshheading:6170322-Binding Sites,
pubmed-meshheading:6170322-Bleomycin,
pubmed-meshheading:6170322-Chemical Phenomena,
pubmed-meshheading:6170322-Chemistry,
pubmed-meshheading:6170322-DNA, Viral,
pubmed-meshheading:6170322-DNA Restriction Enzymes,
pubmed-meshheading:6170322-Electrophoresis, Polyacrylamide Gel
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pubmed:year |
1981
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pubmed:articleTitle |
Nonspecific cleavage of phi X174 RFI deoxyribonucleic acid by bleomycin.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|