Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1988-6-14
pubmed:abstractText
In mammalian cells, the rabbit beta-globin readthrough protein is the only known example of a naturally occurring readthrough protein which does not involve a viral system. To provide an efficient means for its isolation, detection, and study, we elicited specific antibodies against this unique protein. The 22 amino acid peptide corresponding to the readthrough portion of this protein was synthesized, coupled to keyhole limpet hemocyanin, and injected into sheep. Specific antibodies to the peptide were produced as demonstrated by the enzyme-linked immunosorbent assay technique and by immunoblotting. The antibodies did not react with globin. The rabbit beta-globin readthrough protein was separated from globin and other reticulocyte proteins by polyacrylamide gel electrophoresis and visualized by silver staining or by labeling with [35S]methionine. Incorporation of [35S]methionine into the readthrough protein was significantly enhanced upon addition of an opal suppressor tRNA to reticulocyte lysates. Immunoblotting revealed that the readthrough protein also occurs in lysates without added suppressor tRNA. The antibodies were purified on an affi-gel column which had been coupled with the peptide antigen. The readthrough protein was then purified from reticulocytes by immunoaffinity chromatography and by high-performance liquid chromatography. The results provide conclusive evidence that the beta-globin readthrough protein is naturally occurring in rabbit reticulocytes.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0006-2960
pubmed:author
pubmed:issnType
Print
pubmed:day
23
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1179-83
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Immunopurification of the suppressor tRNA dependent rabbit beta-globin readthrough protein.
pubmed:affiliation
Laboratory of Experimental Carcinogenesis, National Cancer Institute, Bethesda, Maryland 20892.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.