Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1986-9-16
pubmed:abstractText
The thermal stability of the hexanucleoside pentaphosphate d(br5CGbr5CGbr5CG) has been studied at two nucleotide concentrations, in the presence of 1 M NaClO4. At low nucleotide concentration (7 X 10(-5) M), circular dichroism experiments show a conformational transition from the Z conformation to another conformation, named X, which is not the B conformation, as the temperature is increased from 0 to 35 degrees C. Between 40 and 65 degrees C, another transition is observed which corresponds to the melting of the X conformation. At higher nucleotide concentration (2 X 10(-3) M), circular dichroism and 31P nuclear magnetic resonance experiments show that at low temperature (br5dC-dG)3 adopts the Z conformation. There are associations between the oligonucleotides which progressively disappear as the temperature increases. In the range 35-60 degrees C a transition from the Z conformation to another conformation is observed. This new conformation is the X conformation detected at low nucleotide concentration.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0300-9084
pubmed:author
pubmed:issnType
Print
pubmed:volume
68
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
739-43
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Thermal stability of the Z conformation of the hexanucleoside pentaphosphate d(br5CGbr5CGbr5CG): evidence for a conformational transition before melting.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't