My NCBISign In

Display Settings:

Format

Send to:

Choose Destination
    Mol Cell Biol. 1998 Jan;18(1):250-9.

    Transformation suppression by protein tyrosine phosphatase 1B requires a functional SH3 ligand.

    Liu F, Sells MA, Chernoff J.

    Source

    Fox Chase Cancer Center, Philadelphia, Pennsylvania 19111, USA.

    Abstract

    We have recently shown that protein tyrosine phosphatase 1B (PTP1B) associates with the docking protein p130Cas in 3Y1 rat fibroblasts. This interaction is mediated by a proline-rich sequence on PTP1B and the SH3 domain on p130Cas. Expression of wild-type PTP1B (WT-PTP1B), but not a catalytically competent, proline-to-alanine point mutant that cannot bind p130Cas (PA-PTP1B), causes substantial tyrosine dephosphorylation of p130Cas (F. Liu, D. E. Hill, and J. Chernoff, J. Biol. Chem. 271:31290-31295, 1996). Here we demonstrate that WT-, but not PA-PTP1B, inhibits transformation of rat 3Y1 fibroblasts by v-crk, -src, and -ras, but not by v-raf. These effects on transformation correlate with the phosphorylation status of p130Cas and two proteins that are associated with p130Cas, Paxillin and Fak. Expression of WT-PTP1B reduces formation of p130Cas-Crk complexes and inhibits mitogen-activated protein kinase activation by Src and Crk. These data show that transformation suppression by PTP1B requires a functional SH3 ligand and suggest that p130Cas may represent an important physiological target of PTP1B in cells.

    PMID:
    9418872
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC121485
    Free PMC Article

    Images from this publication.See all images (10) Free text

    FIG. 2
    FIG. 4
    FIG. 6
    FIG. 8
    FIG. 10
    FIG. 1
    FIG. 3
    FIG. 5
    FIG. 7
    FIG. 9

    Publication Types, MeSH Terms, Substances, Grant Support

    Publication Types

    MeSH Terms

    Substances

    Grant Support

    LinkOut - more resources

    Full Text Sources

      Supplemental Content

      Icon for HighWire Press Icon for PubMed Central

      Save items

      loading

      Related citations in PubMed

      See reviews... See all...

      Cited by 12 PubMed Central articles

      See all...

      Related information

      • Related Citations
        Calculated set of PubMed citations closely related to the selected article(s) retrieved using a word weight algorithm. Related articles are displayed in ranked order from most to least relevant, with the “linked from” citation displayed first.
      • BioSystems
        Pathways and biological systems (BioSystems) that cite the current articles. Citations are from the BioSystems source databases (KEGG and BioCyc).
      • Gene
        Gene records that cite the current articles. Citations in Gene are added manually by NCBI or imported from outside public resources.
      • HomoloGene
        HomoloGene clusters of homologous genes and sequences that cite the current articles. These are references on the Gene and sequence records in the HomoloGene entry.
      • Nucleotide (RefSeq)
        NCBI nucleotide Reference Sequences (RefSeqs) that are cited in the current articles, included in the corresponding Gene Reference into Function, or that include the PubMed articles as references.
      • Nucleotide (Weighted)
        Nucleotide records associated with the current articles through the Gene database. These are the related sequences on the Gene record that are added manually by NCBI.
      • Protein (RefSeq)
        NCBI protein Reference Sequences (RefSeqs) that are cited in the current articles, included in the corresponding Gene Reference into Function, or that include the PubMed articles as references.
      • Protein (Weighted)
        Protein records associated with the current articles through related Gene database records. These are the related sequences on the Gene record that are added manually by NCBI.
      • References for this PMC Article
        Citation referenced in PubMed article. Only valid for PubMed citations that are also in PMC.
      • Substance (MeSH Keyword)
        PubChem chemical substance (submitted) records that are classified under the same Medical Subject Headings (MeSH) controlled vocabulary as the current articles.
      • Taxonomy via GenBank
        Taxonomy records associated with the current articles through taxonomic information on related molecular database records (Nucleotide, Protein, Gene, SNP, Structure).
      • UniGene
        UniGene clusters of expressed sequences that are associated with the current articles through references on the clustered sequence records and related Gene records.
      • GEO Profiles
        Gene Expression Omnibus (GEO) Profiles of molecular abundance data. The current articles are references on the Gene record associated with the GEO profile.
      • Free in PMC
        Free full text articles in PMC
      • Cited in PMC
        Full-text articles in the PubMed Central Database that cite the current articles.

      Recent activity

      Clear Turn Off Turn On

      Your browsing activity is empty.

      Activity recording is turned off.

      Turn recording back on

      See more...
      You are here: NCBI > Literature > PubMed
      Write to the Help Desk