Linked Life Data

3500171

Source:http://linkedlifedata.com/resource/pubmed/id/3500171

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
35
pubmed:dateCreated
1988-1-21
pubmed:abstractText
The use of ultra high resolution giant two-dimensional gel electrophoresis has expanded the number of recognizable heat-shock proteins to 68 inductions in rat thymic lymphocytes, many of which are among the less abundant cellular proteins (Maytin, E. V., Colbert, R. A., and Young, D. A. (1985) J. Biol. Chem. 260, 2384-2392). Previous studies also show that cells receiving a prior heat shock recover more rapidly from the inhibition of protein synthesis induced by a second heat shock. In this report we use a monoclonal antibody to identify the alpha subunit of eukaryotic initiation factor-2 (eIF-2 alpha) as a heat-shock protein. Its relative rate of synthesis increases approximately 40% in the 2nd h and 5-fold in the 4th h of a continuous heat shock and is stimulated more dramatically, 15-fold, in the 3rd h of recovery from a 1-h heat shock. These results suggest that the induction of eIF-2 alpha in the heat-shock response may be important for restoring the cell's ability to initiate protein synthesis. In addition to identifying a function for one of the heat-shock proteins, our findings draw attention to the likelihood that other low-abundance heat-shock proteins may play critical roles in the heat-shock response.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
262
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
16763-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Alpha subunit of eukaryotic translational initiation factor-2 is a heat-shock protein.
pubmed:affiliation
E. Henry Keutmann Laboratories, Department of Medicine, Rochester, New York.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.