Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1997-1-27
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.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0896-6273
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1201-7
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Regulation of the phosphorylation state and microtubule-binding activity of Tau by protein phosphatase 2A.
pubmed:affiliation
Department of Pharmacology, University of Texas, Southwestern Medical Center, Dallas 75235, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't