1i7x
From Proteopedia
BETA-CATENIN/E-CADHERIN COMPLEX
Overview
As a component of adherens junctions and the Wnt signaling pathway, beta-catenin binds cadherins, Tcf family transcription factors, and the tumor suppressor APC. We have determined the crystal structures of both unphosphorylated and phosphorylated E-cadherin cytoplasmic domain complexed with the arm repeat region of beta-catenin. The interaction spans all 12 arm repeats, and features quasi-independent binding regions that include helices which interact with both ends of the arm repeat domain and an extended stretch of 14 residues which closely resembles a portion of XTcf-3. Phosphorylation of E-cadherin results in interactions with a hydrophobic patch of beta-catenin that mimics the binding of an amphipathic XTcf-3 helix. APC contains sequences homologous to the phosphorylated region of cadherin, and is likely to bind similarly.
About this Structure
1I7X is a Protein complex structure of sequences from Mus musculus. Full crystallographic information is available from OCA.
Reference
The structure of the beta-catenin/E-cadherin complex and the molecular basis of diverse ligand recognition by beta-catenin., Huber AH, Weis WI, Cell. 2001 May 4;105(3):391-402. PMID:11348595 Page seeded by OCA on Fri May 2 19:41:10 2008
