| http://purl.uniprot.org/citations/26350464 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/26350464 | http://www.w3.org/2000/01/rdf-schema#comment | "The α6β4 integrin is known to associate with receptor tyrosine kinases when engaged in epithelial wound healing and in carcinoma invasion and survival. Prior work has shown that HER2 associates with α6β4 integrin and syndecan-1 (Sdc1), in which Sdc1 engages the cytoplasmic domain of the β4 integrin subunit allowing HER2-dependent motility and carcinoma cell survival. In contrast, EGFR associates with Sdc4 and the α6β4 integrin, and EGFR-dependent motility depends on cytoplasmic engagement of β4 integrin with Sdc4. However, how HER2 and EGFR assimilate into a complex with the syndecans and integrin, and why kinase capture is syndecan-specific has remained unknown. In the present study, we demonstrate that HER2 is captured via a site, comprised of amino acids 210-240, in the extracellular domain of human Sdc1, and EGFR is captured via an extracellular site comprised of amino acids 87-131 in human Sdc4. Binding assays using purified recombinant proteins demonstrate that the interaction between the EGFR family members and the syndecans is direct. The α3β1 integrin, which is responsible for the motility of the cells, is captured at these sites as well. Peptides based on the interaction motifs in Sdc1 and Sdc4, called synstatins (SSTN210-240 and SSTN87-131) competitively displace the receptor tyrosine kinase and α3β1 integrin from the syndecan with an IC50 of 100-300 nm. The syndecans remain anchored to the α6β4 integrin via its cytoplasmic domain, but the activation of cell motility is disrupted. These novel SSTN peptides are potential therapeutics for carcinomas that depend on these HER2- and EGFR-coupled mechanisms for their invasion and survival."xsd:string |
| http://purl.uniprot.org/citations/26350464 | http://purl.org/dc/terms/identifier | "doi:10.1074/jbc.m115.679084"xsd:string |
| http://purl.uniprot.org/citations/26350464 | http://purl.uniprot.org/core/author | "Jin H."xsd:string |
| http://purl.uniprot.org/citations/26350464 | http://purl.uniprot.org/core/author | "Wang H."xsd:string |
| http://purl.uniprot.org/citations/26350464 | http://purl.uniprot.org/core/author | "Rapraeger A.C."xsd:string |
| http://purl.uniprot.org/citations/26350464 | http://purl.uniprot.org/core/date | "2015"xsd:gYear |
| http://purl.uniprot.org/citations/26350464 | http://purl.uniprot.org/core/name | "J Biol Chem"xsd:string |
| http://purl.uniprot.org/citations/26350464 | http://purl.uniprot.org/core/pages | "26103-26113"xsd:string |
| http://purl.uniprot.org/citations/26350464 | http://purl.uniprot.org/core/title | "Syndecan-1 and Syndecan-4 Capture Epidermal Growth Factor Receptor Family Members and the alpha3beta1 Integrin Via Binding Sites in Their Ectodomains: NOVEL SYNSTATINS PREVENT KINASE CAPTURE AND INHIBIT alpha6beta4-INTEGRIN-DEPENDENT EPITHELIAL CELL MOTILITY."xsd:string |
| http://purl.uniprot.org/citations/26350464 | http://purl.uniprot.org/core/volume | "290"xsd:string |
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