Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
44
pubmed:dateCreated
1995-12-18
pubmed:abstractText
UV resonance Raman spectroscopy has been utilized to directly observe structural features of the recently described nucleic acid single-stranded helix d(A(+)-G)10. An absence of base stacking is confirmed by invariant hypochromic ratios of dominant vibrational modes for the oligomer relative to its constituent monomers as the structure is thermally denatured. The N1 of dA residues is protonated, as determined by similarity to the ring-stretching vibrations for protonated adenine and its derivatives. Selective resonance enhancement of Raman vibrational modes from dA and dG residues shows frequency shifts upon thermal denaturation that confirm the participation of the exocyclic amino of dA but not dG residues in H-bonding. Conformationally sensitive glycosyl bond modes suggest anti residue conformations.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0006-2960
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:volume
34
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
14300-3
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
A UV resonance Raman study of d(A(+)-G)10, a single-stranded helix without stacked or paired bases.
pubmed:affiliation
Department of Chemistry, Princeton University, New Jersey 08544-1014, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.