| pubmed-article:21307338 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:21307338 | lifeskim:mentions | umls-concept:C0596901 | lld:lifeskim |
| pubmed-article:21307338 | lifeskim:mentions | umls-concept:C0005528 | lld:lifeskim |
| pubmed-article:21307338 | lifeskim:mentions | umls-concept:C0029219 | lld:lifeskim |
| pubmed-article:21307338 | lifeskim:mentions | umls-concept:C0026046 | lld:lifeskim |
| pubmed-article:21307338 | lifeskim:mentions | umls-concept:C1332795 | lld:lifeskim |
| pubmed-article:21307338 | lifeskim:mentions | umls-concept:C1515877 | lld:lifeskim |
| pubmed-article:21307338 | lifeskim:mentions | umls-concept:C1879547 | lld:lifeskim |
| pubmed-article:21307338 | pubmed:issue | 8 | lld:pubmed |
| pubmed-article:21307338 | pubmed:dateCreated | 2011-4-18 | lld:pubmed |
| pubmed-article:21307338 | pubmed:abstractText | Microtubule (MT)-based organelle transport is driven by MT motor proteins that move cargoes toward MT minus-ends clustered in the cell center (dyneins) or plus-ends extended to the periphery (kinesins). Cells are able to rapidly switch the direction of transport in response to external cues, but the signaling events that control switching remain poorly understood. Here, we examined the signaling mechanism responsible for the rapid activation of dynein-dependent MT minus-end-directed pigment granule movement in Xenopus melanophores (pigment aggregation). We found that, along with the previously identified protein phosphatase 2A (PP2A), pigment aggregation signaling also involved casein kinase 1? (CK1?), that both enzymes were bound to pigment granules, and that their activities were increased during pigment aggregation. Furthermore we found that CK1? functioned downstream of PP2A in the pigment aggregation signaling pathway. Finally, we discovered that stimulation of pigment aggregation increased phosphorylation of dynein intermediate chain (DIC) and that this increase was partially suppressed by CK1? inhibition. We propose that signal transduction during pigment aggregation involves successive activation of PP2A and CK1? and CK1?-dependent phosphorylation of DIC, which stimulates dynein motor activity and increases minus-end-directed runs of pigment granules. | lld:pubmed |
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| pubmed-article:21307338 | pubmed:language | eng | lld:pubmed |
| pubmed-article:21307338 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:21307338 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:21307338 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:21307338 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:21307338 | pubmed:month | Apr | lld:pubmed |
| pubmed-article:21307338 | pubmed:issn | 1939-4586 | lld:pubmed |
| pubmed-article:21307338 | pubmed:author | pubmed-author:TirnauerJenni... | lld:pubmed |
| pubmed-article:21307338 | pubmed:author | pubmed-author:IkedaKazuhoK | lld:pubmed |
| pubmed-article:21307338 | pubmed:author | pubmed-author:RodionovVladi... | lld:pubmed |
| pubmed-article:21307338 | pubmed:author | pubmed-author:ZaliapinIlyaI | lld:pubmed |
| pubmed-article:21307338 | pubmed:author | pubmed-author:SemenovaIrina... | lld:pubmed |
| pubmed-article:21307338 | pubmed:author | pubmed-author:ZhapparovaOlg... | lld:pubmed |
| pubmed-article:21307338 | pubmed:author | pubmed-author:BrodskyIlyaI | lld:pubmed |
| pubmed-article:21307338 | pubmed:issnType | Electronic | lld:pubmed |
| pubmed-article:21307338 | pubmed:day | 15 | lld:pubmed |
| pubmed-article:21307338 | pubmed:volume | 22 | lld:pubmed |
| pubmed-article:21307338 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:21307338 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:21307338 | pubmed:pagination | 1321-9 | lld:pubmed |
| pubmed-article:21307338 | pubmed:dateRevised | 2011-8-19 | lld:pubmed |
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