1jpw
From Proteopedia
Crystal Structure of a Human Tcf-4 / beta-Catenin Complex
Overview
The multifunctional protein beta-catenin is important for cell adhesion, because it binds cadherins, and the Wnt signal transduction pathway, where it interacts with the Adenomatous polyposis coli (APC) protein and TCF/Lef family transcription factors. Mutations in APC or in beta-catenin are estimated to trigger formation of over 90% of all colon cancers. In colonic epithelia, these mutations produce elevated levels of Tcf4-beta-catenin, which stimulates a transcriptional response that initiates polyp formation and eventually malignant growth. Thus, disruption of the Tcf4-beta-catenin interaction may be an attractive goal for therapeutic intervention. Here we describe the crystal structure of a human Tcf4-beta-catenin complex and compare it with recent structures of beta-catenin in complex with Xenopus Tcf3 (XTcf3) and mammalian E-cadherin. The structure reveals anticipated similarities with the closely related XTcf3 complex but unexpectedly lacks one component observed in the XTcf3 structure.
About this Structure
1JPW is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structure of a human Tcf4-beta-catenin complex., Poy F, Lepourcelet M, Shivdasani RA, Eck MJ, Nat Struct Biol. 2001 Dec;8(12):1053-7. PMID:11713476 Page seeded by OCA on Fri May 2 21:34:52 2008
