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CIN85 and CMS belong to a family of ubiquitously expressed adaptor molecules containing three SH3 domains, a proline-rich region and a coiled-coil domain. By binding to numerous proteins they assemble multimeric complexes implicated in cell-specific signals controlling T-cell activation, kidney glomeruli function or apoptosis in neuronal cells. CIN85/CMS also associate with accessory endocytic proteins, components of the actin cytoskeleton as well as other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. These interactions enable CIN85/CMS to function within a network of signaling pathways that co-ordinate critical steps involved in downregulation and degradation of RTKs.
Ivan Đikić (Tue,) studied this question.