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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
3
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pubmed:dateCreated |
1978-12-20
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pubmed:abstractText |
A DNA-protein complex was isolated from Bacillus subtilis bacteriophage phi29 by sucrose gradient sedimentation or gel filtration in the presence of agents known to break noncovalent bonds. A 28,000-dalton protein was released from this complex by subsequent hydrolysis of the DNA. The DNA-protein complex was examined for its susceptibility to enzymes which act upon the 5' and 3' termini of DNA molecules. It was susceptible to exonucleolytic degradation from the 3' termini by exonuclease III but not from the 5' termini by lambda exonuclease. Attempts to label radioactively the 5' termini by phosphorylation with T4 polynucleotide kinase were unsuccessful despite prior treatment with alkaline phosphatase or phosphatase treatment of denatured DNA. Removal of the majority of the bound protein by proteolytic digestion did not increase susceptibility. These results suggest that the linked protein is covalently attached to the 5' termini of phi29 DNA.
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pubmed:commentsCorrections |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0022-538X
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
27
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
776-83
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading |
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pubmed:year |
1978
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pubmed:articleTitle |
Genome-linked protein associated with the 5' termini of bacteriophage phi29 DNA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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