RRC ID 1379
Author Saito Y, Doi K, Yamagishi N, Ishihara K, Hatayama T.
Title Screening of Hsp105alpha-binding proteins using yeast and bacterial two-hybrid systems.
Journal Biochem Biophys Res Commun
Abstract Hsp105alpha is a 105-kDa stress protein, which is expressed constitutively at especially high levels in the brain compared with other tissues in mammals, and is also induced by a variety of stressors. Recently, we have shown that Hsp105alpha binds to alpha-tubulin and prevents the heat-induced disaggregation of microtubules. To further elucidate the function of Hsp105alpha, we searched for Hsp105alpha-binding proteins by screening a mouse FM3A cell library and human and mouse brain cDNA libraries using the yeast and bacterial two-hybrid systems. We showed here that Hsp105alpha interacted with several cellular proteins, such as cofilin, dynein light chain 2A, alpha-adducin, ubiquitin activating enzyme E1, phosphoglycerate kinase 1, and platelet-activating factor acethylhydrolase alpha1-subunit. The interaction was validated by the results of a pull-down assay and indirect immunofluorescence analysis. The significance of Hsp105alpha and Hsp105alpha-binding proteins in cells was discussed.
Volume 314(2)
Pages 396-402
Published 2004-2-6
DOI 10.1016/j.bbrc.2003.12.108
PII S0006291X03026962
PMID 14733918
MeSH Animals Bacterial Proteins / chemistry Brain / metabolism COS Cells Calmodulin-Binding Proteins / metabolism Cytoskeleton / metabolism DNA, Complementary / metabolism Fluorescent Antibody Technique, Indirect Fungal Proteins / chemistry Gene Library HSP110 Heat-Shock Proteins HSP70 Heat-Shock Proteins / metabolism* Humans Mice Microscopy, Fluorescence Microtubules / metabolism Plasmids / metabolism Protein Binding Protein Biosynthesis Recombinant Proteins / metabolism Transcription, Genetic Tubulin / metabolism Two-Hybrid System Techniques*
IF 2.985
Times Cited 4
WOS Category BIOPHYSICS BIOCHEMISTRY & MOLECULAR BIOLOGY
Resource
Human and Animal Cells COS-7(RCB0539)