Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1991-5-17
pubmed:abstractText
We review recent evidence on the in vivo and in vitro mRNA degradation properties of 2 3'-exonucleases, ribonuclease II and polynucleotide phosphorylase. Although secondary structures in the RNA can act as protective barriers against 3' exonucleolytic degradation, it appears that this effect depends on the stability of these structures. The fact that RNase II is more sensitive to RNA secondary structure than PNPase, could account for some differences observed in messenger degradation by the 2 enzymes in vivo. Terminator stem-loop structures are often very stable and 3' exonucleolytic degradation proceeds only after they have been eliminated by an endonucleolytic cleavage. Other secondary structures preceding terminator stem-loop seem to contribute to mRNA stability against exonucleolytic decay.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0300-9084
pubmed:author
pubmed:issnType
Print
pubmed:volume
72
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
771-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Different specificities of ribonuclease II and polynucleotide phosphorylase in 3'mRNA decay.
pubmed:affiliation
Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados, Mexico City, Mexico.
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't