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Association of the APC tumor suppressor protein with catenins.


Mutations of APC appear to initiate sporadic and inherited forms of human colorectal cancer. Although these mutations have been well characterized, little is known about the function of the APC gene product. Two cellular proteins that associate with APC were identified by nucleotide sequence analysis and peptide mapping as the E-cadherin-associated proteins alpha- and beta-catenin. A 27-residue fragment of APC containing a 15-amino acid repeat was sufficient for the interaction with the catenins. These results suggest an important link between tumor initiation and cell adhesion.

Pubmed ID: 8259519


  • Su LK
  • Vogelstein B
  • Kinzler KW


Science (New York, N.Y.)

Publication Data

December 10, 1993

Associated Grants

  • Agency: NCI NIH HHS, Id: CA-57345

Mesh Terms

  • Adenomatous Polyposis Coli Protein
  • Amino Acid Sequence
  • Base Sequence
  • Cadherins
  • Cell Division
  • Colonic Neoplasms
  • Cytoskeletal Proteins
  • Genes, APC
  • Humans
  • Molecular Sequence Data
  • Neoplasm Proteins
  • Peptide Fragments
  • Recombinant Fusion Proteins
  • Sequence Analysis
  • Trans-Activators
  • Tumor Cells, Cultured
  • alpha Catenin
  • beta Catenin