Linked Life Data

1706664

Source:http://linkedlifedata.com/resource/pubmed/id/1706664

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1991-4-26
pubmed:abstractText
In order to characterize the acidic ribosomal proteins immunologically and functionally, a battery of monoclonal antibodies specific for L44, L44' and L45, the three acidic proteins detected in Saccharomyces cerevisiae, were obtained. Eight monoclonal antibodies were obtained specific for L45, three for L44' and one for L44. In addition, two mAbs recognizing only the phosphorylated forms of the three proteins were obtained. The specific immunogenic determinants are located in the middle region of the protein structure and are differently exposed in the ribosomal surface. The common determinants are present in the carboxyl end of the three proteins. An estimation of the acidic proteins by ELISA indicated that, in contrast to L44 and L45, L44' is practically absent from the cell supernatant; this suggests that protein L44' does not intervene in the exchange that has been shown to take place between the acidic proteins in the ribosome and in the cytoplasmic pool. It has also been found that, while IgGs specific for L44 and L45 do not inhibit the ribosome activity, the anti-L44' effectively blocks the polymerizing activity of the particles. These results show for the first time that the different eukaryotic acidic ribosomal proteins play a different functional role.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0014-2956
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
196
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
407-14
pubmed:dateRevised
2007-7-23
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Characterization of the yeast acidic ribosomal phosphoproteins using monoclonal antibodies. Proteins L44/L45 and L44' have different functional roles.
pubmed:affiliation
Centro de Biologia Molecular, Universidad Autónoma de Madrid, Spain.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't