Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1993-2-22
pubmed:abstractText
Single-strand-preferring ribonucleases of the pancreatic type, structurally and/or catalytically similar to bovine RNase A but endowed with a higher protein basicity, are able to degrade double-stranded RNA (dsRNA) or DNA:RNA hybrids under standard assay conditions (0.15 M NaCl, 0.015 M sodium citrate, pH 7), where RNase A is inactive. This enzyme too, however, becomes quite active if assay conditions are slightly modified or its basicity is increased (polyspermine-RNase). In the attempt to review these facts, we have analyzed and discussed the role that in the process have the secondary structure of dsRNA as well as other variables whose influence has come to light in addition to that of the basicity of the enzyme protein, i.e., the ionic strength, the presence of carbohydrates on the RNase molecule, and the structure (monomeric or dimeric) of the enzyme. A possible mechanism by which dsRNAs are attacked by pancreatic-type RNases has been proposed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0300-8177
pubmed:author
pubmed:issnType
Print
pubmed:day
18
pubmed:volume
117
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
139-51
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Revisiting the action of bovine ribonuclease A and pancreatic-type ribonucleases on double-stranded RNA.
pubmed:affiliation
Istituto di Chimica Biologica, Facoltà di Medicina e Chirurgia, Università di Verona, Italy.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't