rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
3
|
pubmed:dateCreated |
1997-1-2
|
pubmed:abstractText |
Pre-mRNA encoding rubisco activase in the Arabidopsis thaliana mutant rca contains a GU to AU change at the 5' splice site of intron 3 and this mutation results in accumulation of splicing intermediates bearing an incompletely processed intron. It has been demonstrated that one of the intermediates contains intron 3 in the form of a lariat and the branchpoint nucleotide has been mapped to the A residue at position -32 forming part of the sequence UUGAU. Analysis of a similar GU to AU 5' splice site mutation, present in a synthetic pre-mRNA context expressed in transfected protoplasts of Nicotiana plumbaginifolia, also suggests formation of lariats with branching occurring at A-31. A small fraction (approximately 10%) of this mutant pre-mRNA also underwent the second step of splicing. In addition to the consensus AG, an AU dinucleotide was used as splicing acceptor.
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Mar
|
pubmed:issn |
0960-7412
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
9
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
381-9
|
pubmed:dateRevised |
2006-11-7
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pubmed:meshHeading |
pubmed-meshheading:8919914-Arabidopsis,
pubmed-meshheading:8919914-Base Sequence,
pubmed-meshheading:8919914-Chromosome Mapping,
pubmed-meshheading:8919914-DNA, Plant,
pubmed-meshheading:8919914-DNA Primers,
pubmed-meshheading:8919914-Introns,
pubmed-meshheading:8919914-Molecular Sequence Data,
pubmed-meshheading:8919914-Mutation,
pubmed-meshheading:8919914-Plant Proteins,
pubmed-meshheading:8919914-Plants, Genetically Modified,
pubmed-meshheading:8919914-Plants, Toxic,
pubmed-meshheading:8919914-RNA, Plant,
pubmed-meshheading:8919914-RNA Precursors,
pubmed-meshheading:8919914-RNA Splicing,
pubmed-meshheading:8919914-Ribulose-Bisphosphate Carboxylase,
pubmed-meshheading:8919914-Tobacco
|
pubmed:year |
1996
|
pubmed:articleTitle |
Mapping of branchpoint nucleotides in mutant pre-mRNAs expressed in plant cells.
|
pubmed:affiliation |
Friedrich Miescher-Institut, Basel, Switzerland.
|
pubmed:publicationType |
Journal Article
|