0000000000147825

AUTHOR

Isabelle Nefkens

showing 2 related works from this author

Heat shock and Cd2+ exposure regulate PML and Daxx release from ND10 by independent mechanisms that modify the induction of heat-shock proteins 70 an…

2003

Nuclear domains called ND10 or PML bodies might function as nuclear depots by recruiting or releasing certain proteins. Although recruitment of proteins through interferon-induced upregulation and SUMO-1 modification level of PML had been defined, it is not known whether release of proteins is regulated and has physiological consequences. Exposure to sublethal environmental stress revealed a sequential release of ND10-associated proteins. Upon heat shock Daxx and Sp100 were released but PML remained, whereas exposure to subtoxic concentrations of CdCl2 induced the release of ND10-associated proteins, including PML, with Sp100 remaining in a few sites. In both cases,recovery times were simil…

Co-Repressor ProteinsMAP Kinase Signaling SystemMacromolecular SubstancesSUMO-1 ProteinPromyelocytic Leukemia ProteinMicePromyelocytic leukemia proteinDeath-associated protein 6Stress PhysiologicalHeat shock proteinEndopeptidasesAnimalsHSP70 Heat-Shock ProteinsEnzyme InhibitorsHeat shockTranscription factorCells CulturedHeat-Shock ProteinsbiologyTumor Suppressor ProteinsIntracellular Signaling Peptides and ProteinsNuclear ProteinsCell BiologyCell Nucleus StructuresNeoplasm ProteinsCell biologyHsp70Cysteine EndopeptidasesEukaryotic CellsGene Expression RegulationImmunologybiology.proteinSignal transductionCarrier ProteinsCo-Repressor ProteinsHeat-Shock ResponseCadmiumMolecular ChaperonesTranscription FactorsJournal of Cell Science
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Polarity factor 'Frizzled' in the demosponge Suberites domuncula: identification, expression and localization of the receptor in the epithelium/pinac…

2003

Until recently, it was assumed that polarity and axis formation have evolved only in metazoan phyla higher than Cnidaria. One key molecule involved in the signal transduction causing tissue polarity is Frizzled, a seven-transmembrane receptor that is activated by the Wnt family of secreted proteins. We report the isolation and characterization of a Frizzled gene from the demosponge Suberites domuncula (Sd-Fz). The deduced polypeptide comprises all characteristic domains known from Frizzled receptors of higher metazoans. In situ hybridization studies show that Sd-Fz is expressed in cells close to the surface of the sponges and in the pinacocytes of some canals. Northern blot analysis demonst…

FrizzledMolecular Sequence DataBiophysicsPinacodermReceptors Cell SurfaceBiochemistryEpitheliumDemospongeStructural BiologyGeneticsAnimalsNorthern blotAmino Acid SequenceMolecular BiologyIn Situ HybridizationPhylogenyCell AggregationbiologySequence Homology Amino AcidWnt signaling pathwayCell BiologyAnatomybiology.organism_classificationBlotting NorthernCell biologyPoriferaProtein Structure TertiaryUp-RegulationSuberites domunculaSpongeSignal transductionSignal TransductionFEBS letters
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