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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1997-1-27
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pubmed:abstractText |
Recently, we reported that a pool of protein phosphatase 2A (PP2A) is associated with microtubules. Here, we demonstrate that specific isoforms of PP2A bind and dephosphorylate the neuronal microtubule-associated protein tau. Coexpression of tau and SV40 small t, a specific inhibitor of PP2A, in CV-1, NIH 3T3, or NT2 cells induced the phosphorylation of tau at multiple sites, including Ser-199, Ser-202, Thr-205, Ser-396, and Ser-404. Immunofluorescent and biochemical analyses revealed that hyperphosphorylation correlated with dissociation of tau from microtubules and a loss of tau-induced microtubule stabilization. Taken together, these results support the hypothesis that PP2A controls the phosphorylation state of tau in vivo.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Epitopes,
http://linkedlifedata.com/resource/pubmed/chemical/Isoenzymes,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphoprotein Phosphatases,
http://linkedlifedata.com/resource/pubmed/chemical/Protein Phosphatase 2,
http://linkedlifedata.com/resource/pubmed/chemical/tau Proteins
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0896-6273
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
17
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1201-7
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:8982166-3T3 Cells,
pubmed-meshheading:8982166-Animals,
pubmed-meshheading:8982166-Cell Line,
pubmed-meshheading:8982166-Drug Stability,
pubmed-meshheading:8982166-Epitopes,
pubmed-meshheading:8982166-Isoenzymes,
pubmed-meshheading:8982166-Mice,
pubmed-meshheading:8982166-Microtubules,
pubmed-meshheading:8982166-Phosphoprotein Phosphatases,
pubmed-meshheading:8982166-Phosphorylation,
pubmed-meshheading:8982166-Protein Phosphatase 2,
pubmed-meshheading:8982166-tau Proteins
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pubmed:year |
1996
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pubmed:articleTitle |
Regulation of the phosphorylation state and microtubule-binding activity of Tau by protein phosphatase 2A.
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pubmed:affiliation |
Department of Pharmacology, University of Texas, Southwestern Medical Center, Dallas 75235, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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