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The dishevelled and axin genes encode multi-domain proteins that play key roles in WNT signalling. Dishevelled prevents beta-catenin degradation by interfering with the interaction of beta-catenin with the degradation-mediating Axin-APC-GSK3beta complex. This interference leads to an accumulation of cytoplasmic beta-catenin, which enters the nucleus and interacts with transcription factors that induce expression of Wnt-target genes. Axin, as a component of the degradation-mediating complex, is a potent negative regulator of Wnt signalling, whereas Dishevelled is a potent activator. Both Dishevelled and Axin possess a DIX (Dishevelled/Axin) domain, which mediates protein-protein interactions, specifically homodimerization.
Pubmed ID: 19909509 RIS Download
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Software tool as Program for Comparative Protein Structure Modelling by Satisfaction of Spatial Restraints. Used for homology or comparative modeling of protein three dimensional structures. User provides alignment of sequence to be modeled with known related structures and MODELLER automatically calculates model containing all non hydrogen atoms.
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