Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1983-7-15
pubmed:abstractText
Biochemical properties of the heat shock or stress proteins of mammalian cells have been investigated using two-dimensional gel electrophoresis and immunological techniques. Of the major mammalian stress proteins (Mr = 72,000, 73,000, and 90,000) and minor stress proteins (Mr = 80,000, 100,000, and 110,000), the 80- and 90-kDa proteins were found to be phosphoproteins in all cell types examined. The 100-kDa protein was found to incorporate phosphate in only some cell types examined. In studies of the metabolic incorporation of mannose into the stress proteins, only the 100-kDa protein was found to be a glycoprotein. Two of the stress proteins, the 80- and 100-kDa species, were found to be identical with the proteins induced in cells grown in the absence of glucose (i.e. the "glucose-regulated proteins"). These same two proteins also were induced in cells treated with the calcium ionophore A23187. To begin examining the intracellular location of these multiregulated proteins, immunofluorescence microscopy studies were carried out using a monoclonal antibody against the 100-kDa stress protein. The antigen was localized primarily with the Golgi apparatus and less prominently with the plasma membrane and nucleus. Heat shock treatment resulted in an increased number of the cells exhibiting a nuclear location of 100 kDa.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
10
pubmed:volume
258
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
7102-11
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Biochemical characterization of the mammalian stress proteins and identification of two stress proteins as glucose- and Ca2+-ionophore-regulated proteins.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.