Evidence map›Paper›PMID 21382555›Full record

ArticleNeuron2011

Requirement for Plk2 in orchestrated ras and rap signaling, homeostatic structural plasticity, and memory.

Kea Joo Lee, Yeunkum Lee, Aaron Rozeboom, Ji-Yun Lee, Noriko Udagawa, Hyang-Sook Hoe, Daniel T S Pak

Open access · bronzeAbstract read
In one paragraph

Article in Neuron, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
3.7field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

66 citing papers in PubMed, 101 citations in OpenAlex.

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  17. SIPA1L1/SPAR1 Interacts with the Neurabin Family of Proteins and is Involved in GPCR Signaling.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
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6 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Kea Joo LeeDepartment of Pharmacology, Georgetown University Medical Center, Washington, DC 20057-1464, USA.
Yeunkum Lee
Aaron Rozeboom
Ji-Yun Lee
Noriko Udagawa
Hyang-Sook Hoe
Daniel T S Pak
Georgetown University Medical Center · USGeorgetown University · US

Funding

Molecular mechanisms of synapse lossR01NS048085 · NINDS · GEORGETOWN UNIVERSITY · PI PAK, DANIEL T · 2006 to 2010
$1.4M
NINDS NIH HHS NS048085NINDS NIH HHS R01 NS048085
6 · The paper itself

Abstract

Ras and Rap small GTPases are important for synaptic plasticity and memory. However, their roles in homeostatic plasticity are unknown. Here, we report that polo-like kinase 2 (Plk2), a homeostatic suppressor of overexcitation, governs the activity of Ras and Rap via coordination of their regulatory proteins. Plk2 directs elimination of Ras activator RasGRF1 and Rap inhibitor SPAR via phosphorylation-dependent ubiquitin-proteasome degradation. Conversely, Plk2 phosphorylation stimulates Ras inhibitor SynGAP and Rap activator PDZGEF1. These Ras/Rap regulators perform complementary functions to downregulate dendritic spines and AMPA receptors following elevated activity, and their collective regulation by Plk2 profoundly stimulates Rap and suppresses Ras. Furthermore, perturbation of Plk2 disrupts Ras and Rap signaling, prevents homeostatic shrinkage and loss of dendritic spines, and impairs proper memory formation. Our study demonstrates a critical role of Plk2 in the synchronized tuning of Ras and Rap and underscores the functional importance of this regulation in homeostatic synaptic plasticity.

Indexed as

AnimalsBlotting, WesternDendritic SpinesElectrophoretic Mobility Shift AssayHippocampusMemoryMiceNeuronal PlasticityNeuronsPhosphorylationProteasome Endopeptidase ComplexProtein KinasesProtein Serine-Threonine Kinasesrap GTP-Binding Proteinsras ProteinsReceptors, AMPAATP dependent 26S proteaseProteasome Endopeptidase ComplexProtein KinasesProtein Serine-Threonine Kinasesrap GTP-Binding Proteinsras ProteinsReceptors, AMPAserum-inducible kinase

Identifiers

PMID21382555
PMCPMC3073828
OpenAlexW2017999389

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.