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Construction of a series of several self-cleaving RNA duplexes using synthetic 21-mers.

Identifieur interne : 000C77 ( Ncbi/Merge ); précédent : 000C76; suivant : 000C78

Construction of a series of several self-cleaving RNA duplexes using synthetic 21-mers.

Auteurs : M. Koizumi [Japon] ; S. Iwai ; E. Ohtsuka

Source :

RBID : pubmed:2449365

Descripteurs français

English descriptors

Abstract

Two fragments (21-mers) containing consensus sequences for the self-cleavage domain in transcripts of satellite DNA of the newt were chemically synthesized and found to be cleaved in the presence of Mg2+. The cleaved product contained the 3'-terminal 2',3'-cyclic phosphate. Twenty-five combinations of partially double-stranded 21-mer RNA which contained different bases within the consensus sequences and at the cleavage sites were tested for self-cleavage. It seemed that guanosine 3'-phosphate was not susceptible to transesterification at the cleavage site.

DOI: 10.1016/0014-5793(88)80004-8
PubMed: 2449365

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pubmed:2449365

Le document en format XML

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<nlm:affiliation>Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.</nlm:affiliation>
<country xml:lang="fr">Japon</country>
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<name sortKey="Iwai, S" sort="Iwai, S" uniqKey="Iwai S" first="S" last="Iwai">S. Iwai</name>
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<term>Esterification</term>
<term>Magnesium (pharmacology)</term>
<term>Polyribonucleotides</term>
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<term>ARN (synthèse chimique)</term>
<term>ARN double brin (métabolisme)</term>
<term>ARN double brin (synthèse chimique)</term>
<term>Animaux</term>
<term>Composition en bases nucléiques</term>
<term>Estérification</term>
<term>Magnésium (pharmacologie)</term>
<term>Polyribonucléotides</term>
<term>Salamandridae (génétique)</term>
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<term>Transcription génétique</term>
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<div type="abstract" xml:lang="en">Two fragments (21-mers) containing consensus sequences for the self-cleavage domain in transcripts of satellite DNA of the newt were chemically synthesized and found to be cleaved in the presence of Mg2+. The cleaved product contained the 3'-terminal 2',3'-cyclic phosphate. Twenty-five combinations of partially double-stranded 21-mer RNA which contained different bases within the consensus sequences and at the cleavage sites were tested for self-cleavage. It seemed that guanosine 3'-phosphate was not susceptible to transesterification at the cleavage site.</div>
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