Mutational analysis of the human HSP70 protein: Distinct domains for nucleolar localization and adenosine triphosphate binding

The human HSP70 gene was modified in vitro using oligonucleotide-directed mutagenesis to add sequences encoding a peptide from the testis-specific form of human lactate dehydrogenase (LDH) to the carboxy terminus of HSP70. A series of deletion mutants within the HSP70 protein coding region were gene...

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Bibliographic Details
Published inCell Vol. 109; no. 5; pp. 1947 - 1962
Main Authors Milarski, K L, Morimoto, R I
Format Journal Article
LanguageEnglish
Published 01.01.1989
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Summary:The human HSP70 gene was modified in vitro using oligonucleotide-directed mutagenesis to add sequences encoding a peptide from the testis-specific form of human lactate dehydrogenase (LDH) to the carboxy terminus of HSP70. A series of deletion mutants within the HSP70 protein coding region were generated. Using double-label indirect immunofluorescence with the LDH peptide-specific antiserum and HSP70-specific mAbs, we compared the intracellular distribution of the deletion mutants to that of endogenous HSP70. We have determined that sequences in the carboxy terminus of HSP70 are necessary for proper nucleolar localization after heat shock.
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ISSN:0092-8674