Publication: Hsp90/hsp70 chaperone machine regulation of the saccharomyces mal-activator as determined in vivo using noninducible and constitutive mutant alleles
dc.contributor.coauthor | Ran, Fulai | |
dc.contributor.coauthor | Michels, Corinne A. | |
dc.date.accessioned | 2024-11-09T23:43:44Z | |
dc.date.issued | 2008 | |
dc.description.abstract | The Hsp90/Hsp70 chaperone machine is an essential regulator of cell growth and division. It is required for activation of select client proteins, chiefly protein kinases and transcription activators and thus plays a major role in regulating intracellular signaling and gene expression. This report demonstrates, in vivo, the association of the Saccharomyces cerevisiae maltose-responsive transcription activator Mal63 (MAL-activator) with the yeast Hsp70 (Ssa1), Hsp90 (Hsp82), and Hop (Sti1) homologs, using a collection of inducible, constitutive, and noninducible alleles. Each class of mutant activator forms a distinctly different stable multichaperone complex in the absence of maltose. Inducible Mal63p associates with Ssa1, Hsp82, and Sti1 and is released in the presence of maltose. Noninducible mal63 mutant proteins bind to Ssa1 alone and do not stably associate with Hsp82 or Sti1. ConstitutiveMAL-activators bind well to Hsp82 and poorly to Ssa1 and Sti1, but deletion of STI1 restores Ssa1 binding. Taken together, Mal63p regulation requires the formation of Hsp90/Hsp70 subcomplexes comparable to, yet distinct from those observed with previously characterized Hsp90 clients including glucocorticoid receptor and yeast Hap1p. Thus, comparative studies of different client proteins highlight functional diversity in the operation of the Hsp90/Hsp70 chaperone machine. Copyright © 2008 by the Genetics Society of America. | |
dc.description.indexedby | Scopus | |
dc.description.indexedby | PubMed | |
dc.description.issue | 1 | |
dc.description.openaccess | YES | |
dc.description.publisherscope | International | |
dc.description.sponsoredbyTubitakEu | N/A | |
dc.description.volume | 179 | |
dc.identifier.doi | 10.1534/genetics.107.084921 | |
dc.identifier.issn | 0016-6731 | |
dc.identifier.quartile | Q1 | |
dc.identifier.scopus | 2-s2.0-52049091534 | |
dc.identifier.uri | https://doi.org/10.1534/genetics.107.084921 | |
dc.identifier.uri | https://hdl.handle.net/20.500.14288/13545 | |
dc.keywords | Alpha glucosidase | |
dc.keywords | Fungal protein | |
dc.keywords | Heat shock protein | |
dc.keywords | Heat shock protein 70 | |
dc.keywords | Heat shock protein 82 | |
dc.keywords | Heat shock protein 90 | |
dc.keywords | Maltose | |
dc.keywords | Protein ssa1 | |
dc.keywords | Protein sti1 | |
dc.keywords | Protein stil1 | |
dc.keywords | Ro antibody | |
dc.keywords | Unclassified drug | |
dc.keywords | Chaperone | |
dc.keywords | Heat shock protein 70 | |
dc.keywords | Heat shock protein 90 | |
dc.keywords | HSP82 protein, S cerevisiae | |
dc.keywords | MAL63 protein, S cerevisiae | |
dc.keywords | Maltose | |
dc.keywords | Primer DNA | |
dc.keywords | Saccharomyces cerevisiae protein | |
dc.keywords | SSA3 protein, S cerevisiae | |
dc.keywords | Transcription factor | |
dc.keywords | Allele | |
dc.keywords | Article | |
dc.keywords | Controlled study | |
dc.keywords | Fungal strain | |
dc.keywords | Gene control | |
dc.keywords | Gene deletion | |
dc.keywords | Immunoprecipitation | |
dc.keywords | In vivo study | |
dc.keywords | Nonhuman | |
dc.keywords | Priority journal | |
dc.keywords | Protein expression | |
dc.keywords | Saccharomyces cerevisiae | |
dc.keywords | Comparative study | |
dc.keywords | Gene expression regulation | |
dc.keywords | Genetics | |
dc.keywords | Immunoblotting | |
dc.keywords | Metabolism | |
dc.keywords | Mutation | |
dc.keywords | Saccharomyces | |
dc.keywords | Saccharomyces cerevisiae | |
dc.keywords | DNA primers | |
dc.keywords | Gene expression regulation, fungal | |
dc.keywords | HSP70 heat-shock proteins | |
dc.keywords | HSP90 heat-ahock proteins | |
dc.keywords | Immunoblotting | |
dc.keywords | Immunoprecipitation | |
dc.keywords | Maltose | |
dc.keywords | Molecular chaperones | |
dc.keywords | Mutation | |
dc.keywords | Saccharomyces cerevisiae | |
dc.keywords | Saccharomyces cerevisiae proteins | |
dc.keywords | Transcription factors | |
dc.language.iso | eng | |
dc.publisher | Genetics Society America (GSA) | |
dc.relation.ispartof | Genetics | |
dc.subject | Genetic | |
dc.title | Hsp90/hsp70 chaperone machine regulation of the saccharomyces mal-activator as determined in vivo using noninducible and constitutive mutant alleles | |
dc.type | Journal Article | |
dspace.entity.type | Publication | |
local.contributor.kuauthor | Bali, Mehtap |