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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
40
|
pubmed:dateCreated |
1991-11-13
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pubmed:abstractText |
The improved synthesis of 2'-fluoro-2'-deoxyadenosine (2'-FA) starting from adenosine is described. This compound was converted to the phosphoramidite and incorporated into a hammerhead ribozyme RNA with the use of automated RNA synthesis techniques. Ribozymes containing 2'-deoxy-adenosine (2'-dA) were prepared in a similar manner. A kinetic rate comparison of the unmodified ribozyme with two ribozymes that had every adenosine replaced with 2'FA or 2'-dA revealed a large decrease in catalytic efficiency (kcat/Km) for the modified ribozymes resulting from a drop in kcat. The kinetic analysis of a number of partially substituted 2'-FA or 2'-dA containing hammerheads revealed that the decrease in activity was not associated with any particular residue but was the result of the accumulation of modified nucleosides within the structure.
|
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Oct
|
pubmed:issn |
0006-2960
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
8
|
pubmed:volume |
30
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
9735-41
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1911762-Base Sequence,
pubmed-meshheading:1911762-Deoxyadenosines,
pubmed-meshheading:1911762-Kinetics,
pubmed-meshheading:1911762-Molecular Sequence Data,
pubmed-meshheading:1911762-Nucleic Acid Conformation,
pubmed-meshheading:1911762-RNA, Catalytic,
pubmed-meshheading:1911762-Structure-Activity Relationship
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pubmed:year |
1991
|
pubmed:articleTitle |
Study of a hammerhead ribozyme containing 2'-modified adenosine residues.
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pubmed:affiliation |
Max-Planck Institut für Experimentelle Medizin, Abteilung Chemie, Göttingen, FRG.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|