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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1979-9-25
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pubmed:abstractText |
Some aspects of the interactions between DNA and 8-methoxypsoralen (8-MOP) in its ground state (complex formation) or in its excited state (photobinding) have been investigated. 8-MOP shows a low affinity towards DNA in the complex formation; this fact minimizes the possible biological consequences deriving from this interaction, when it occurs in vivo. In covalent photobinding to DNA, 8-MOP forms mainly monofunctional adducts, and to a lesser extent bifunctional adducts, showing a behavior similar to that of other linearly condensed furocoumarins (psoralens); the ratio between mono- and bifunctional adducts was found to be 9:1. The covalent photobinding to DNA does not occur at random along the macromolecule, but preferentially at the level of specific receptor sites. The regions having an alternate sequence of A-T seem to be the best receptor sites for the formation of monoadducts while the regions containing an alternate sequence of A-T and C-G appeared to be the preferential sites for the cross-linkage formation.
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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 |
Aug
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pubmed:issn |
0022-202X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
73
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
191-7
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pubmed:dateRevised |
2000-12-18
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pubmed:meshHeading |
pubmed-meshheading:458193-Base Sequence,
pubmed-meshheading:458193-DNA,
pubmed-meshheading:458193-Ficusin,
pubmed-meshheading:458193-Methoxsalen,
pubmed-meshheading:458193-Models, Biological,
pubmed-meshheading:458193-Polydeoxyribonucleotides,
pubmed-meshheading:458193-Spectrometry, Fluorescence,
pubmed-meshheading:458193-Ultraviolet Rays
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pubmed:year |
1979
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pubmed:articleTitle |
New studies on the interaction between 8-methoxypsoralen and DNA in vitro.
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pubmed:publicationType |
Journal Article
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