Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/8785
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dc.contributor.authorJenkins, B.en
dc.contributor.authorD'Andrea, R.en
dc.contributor.authorGonda, T.en
dc.date.issued1995en
dc.identifier.citationEMBO Journal, 1995; 14(17):4276-4287en
dc.identifier.issn0261-4189en
dc.identifier.issn1460-2075en
dc.identifier.urihttp://hdl.handle.net/2440/8785-
dc.description.abstractWe have combined retroviral expression cloning with random mutagenesis to identify two activating point mutations in the common signal-transducing subunit (h beta c) of the receptors for human granulocyte-macrophage colony-stimulating factor (GM-CSF), interleukin (IL)-3 and IL-5 by virtue of their ability to confer factor independence on the haemopoietic cell line, FDC-P1. One mutation (V449E) is located within the transmembrane domain and, by analogy with a similar mutation in the neu oncogene, may act by inducing dimerization of h beta c. The other mutation (I374N) lies in the extracellular, membrane-proximal portion of h beta c. Neither of these mutants, nor a previously described mutant of h beta c (FI delta, which has a small duplication in the extracellular region), was capable of inducing factor independence in CTLL-2 cells, while only V449E could induce factor independence in BAF-B03 cells. These results imply that the extracellular and transmembrane mutations act by different mechanisms. Furthermore, they imply that the mutants, and hence also wild-type h beta c, interact with cell type-specific signalling molecules. Models are presented which illustrate how these mutations may act and predict some of the characteristics of the putative receptor-associated signalling molecules.en
dc.description.statementofresponsibilityJenkins, B J ; D'andrea, R ; Gonda, T Jen
dc.language.isoenen
dc.publisherIRL Pressen
dc.source.urihttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC394511/en
dc.subjectHematopoietic Stem Cells; Cell Line; Animals; Humans; Mice; Cell Transformation, Neoplastic; Macromolecular Substances; Receptors, Granulocyte-Macrophage Colony-Stimulating Factor; Receptors, Interleukin-3; Receptors, Interleukin; Recombinant Proteins; DNA Primers; Transfection; Mutagenesis, Site-Directed; Polymerase Chain Reaction; Signal Transduction; Cell Division; Gene Expression Regulation; Amino Acid Sequence; Base Sequence; Point Mutation; Molecular Sequence Data; Receptors, Interleukin-5en
dc.titleActivating point mutations in the common beta subunit of the human GM-CSF, IL-3 and IL-5 receptors suggest the involvement of beta subunit dimerization and cell type-specific molecules in signallingen
dc.typeJournal articleen
dc.identifier.rmid0030004990en
dc.identifier.doi10.1002/j.1460-2075.1995.tb00102.xen
dc.identifier.pubid68996-
pubs.library.collectionMedicine publicationsen
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
dc.identifier.orcidGonda, T. [0000-0002-8792-3021]en
Appears in Collections:Medicine publications

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