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.
This research output has an Altmetric Attention Score of 6. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 July 2025.
All research outputs
#7,405,506
of 34,054,827 outputs
Outputs from Neuron
#6,221
of 10,791 outputs
Outputs of similar age
#14,645
of 122,600 outputs
Outputs of similar age from Neuron
#13
of 35 outputs
Altmetric has tracked 34,054,827 research outputs across all sources so far. This one has received more attention than most of these and is in the 73rd percentile.
So far Altmetric has tracked 10,791 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 33.9. This one is in the 37th percentile – i.e., 37% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 122,600 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 78% of its contemporaries.
We're also able to compare this research output to 35 others from the same source and published within six weeks on either side of this one. This one is in the 48th percentile – i.e., 48% of its contemporaries scored the same or lower than it.
