| http://purl.uniprot.org/citations/19005215 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/19005215 | http://www.w3.org/2000/01/rdf-schema#comment | "Hemidesmosomes (HDs) are multiprotein structures that anchor epithelial cells to the basement membrane. HD components include the alpha6beta4 integrin, plectin, and BPAGs (bullous pemphigoid antigens). HD disassembly in keratinocytes is necessary for cells to migrate and can be induced by EGF through beta4 integrin phosphorylation. We have identified a novel phosphorylation site on the beta4 integrin: S(1424). Preventing phosphorylation by mutating S-->A(1424) results in increased incorporation of beta4 into HDs and resistance to EGF-induced disassembly. In contrast, mutating S-->D(1424) (mimicking phosphorylation) partially mobilizes beta4 from HDs and potentiates the disassembly effects of other phosphorylation sites. In contrast to previously described sites that are phosphorylated upon growth factor stimulation, S(1424) already exhibits high constitutive phosphorylation, suggesting additional functions. Constitutive phosphorylation of S(1424) is distinctively enriched at the trailing edge of migrating keratinocytes where HDs are disassembled. Although most of this S(1424)-phosphorylated beta4 is found dissociated from HDs, a substantial amount can be associated with HDs near the cell margins, colocalizing with plectin but always excluding BPAGs, suggesting that phospho-S(1424) might be a mechanism to dissociate beta4 from BPAGs. S(1424) phosphorylation is PKC dependent. These data suggest an important role for S(1424) in the gradual disassembly of HDs induced by cell retraction."xsd:string |
| http://purl.uniprot.org/citations/19005215 | http://purl.org/dc/terms/identifier | "doi:10.1091/mbc.e08-06-0646"xsd:string |
| http://purl.uniprot.org/citations/19005215 | http://purl.uniprot.org/core/author | "Santos T.M."xsd:string |
| http://purl.uniprot.org/citations/19005215 | http://purl.uniprot.org/core/author | "Rabinovitz I."xsd:string |
| http://purl.uniprot.org/citations/19005215 | http://purl.uniprot.org/core/author | "Germain E.C."xsd:string |
| http://purl.uniprot.org/citations/19005215 | http://purl.uniprot.org/core/date | "2009"xsd:gYear |
| http://purl.uniprot.org/citations/19005215 | http://purl.uniprot.org/core/name | "Mol Biol Cell"xsd:string |
| http://purl.uniprot.org/citations/19005215 | http://purl.uniprot.org/core/pages | "56-67"xsd:string |
| http://purl.uniprot.org/citations/19005215 | http://purl.uniprot.org/core/title | "Phosphorylation of a novel site on the {beta}4 integrin at the trailing edge of migrating cells promotes hemidesmosome disassembly."xsd:string |
| http://purl.uniprot.org/citations/19005215 | http://purl.uniprot.org/core/volume | "20"xsd:string |
| http://purl.uniprot.org/citations/19005215 | http://www.w3.org/2004/02/skos/core#exactMatch | http://purl.uniprot.org/pubmed/19005215 |
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