Linked Life Data

1912301

Source:http://linkedlifedata.com/resource/pubmed/id/1912301

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1991-11-4
pubmed:abstractText
A recently developed methodology [Jankowiak, R., Lu, P., Small, G. J., and Geacintov, N. E. (1990) Chem. Res. Toxicol. 3, 39-46], which combines fluorescence line narrowing spectroscopy at 4.2 K with non-line-narrowed (S2----S0 laser excitation) fluorescence spectroscopy at 77 K and fluorescence quenching, is used to characterize adducts formed from (+)-anti-BPDE and the alternating copolymers poly(dG-dC).poly(dG-dC) and poly(dA-dT).poly(dA-dT), the nonalternating poly (dG).poly(dC), single-strand poly(dG), and the oligonucleotide d(ATATGTATA). Detailed comparisons of the fluorescence spectra and quenching (with acrylamide) of the properties of the adducts with those of (+)-anti-BPDE-DNA adducts are made. Fluorescence spectra of the trans and cis isomers of the adduct formed from guanosine monophosphate and the adducts of d(ATATGTATA) are used to assign the stereochemistry of the two major DNA adducts as trans-N2-dG moieties which occupy two different DNA sites. Evidence for the existence of minor cis-type guanine adducts is provided. Finally, a fourth type of DNA adduct (minor) is identified and assigned as trans-N6-dA.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0893-228X
pubmed:author
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
58-69
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Comparative laser spectroscopic study of DNA and polynucleotide adducts from the (+)-anti-diol epoxide of benzo[a]pyrene.
pubmed:affiliation
Ames Laboratory, USDOE, Iowa State University 50011.
pubmed:publicationType
Journal Article, Comparative Study