Evidence map›Paper›PMID 22544749›Full record

ArticleThe Journal of biological chemistry2012

Striatal-enriched protein-tyrosine phosphatase (STEP) regulates Pyk2 kinase activity.

Jian Xu, Pradeep Kurup, Jason A Bartos, Tommaso Patriarchi, Johannes W Hell, Paul J Lombroso

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
3.6field-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

57 citing papers in PubMed, 87 citations in OpenAlex.

  1. The tyrosine phosphatase STEP is a developmental suppressor of synaptogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  20. A peptide mimetic of tyrosine phosphatase STEP as a potential therapeutic agent for treatment of cerebral ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2019
    Article
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

6 authors at 3 institutions in 2 countries.

Jian XuChild Study Center, Yale University School of Medicine, New Haven, Connecticut 06520, USA.
Pradeep Kurup
Jason A Bartos
Tommaso Patriarchi
Johannes W Hell
Paul J Lombroso
Yale University · USUniversity of Iowa · USUniversity of California, Davis · US

Funding

MOLECULAR AND CELLULAR ANALYSIS OF BRAIN ENRICHED PTPSR01MH052711 · NIMH · YALE UNIVERSITY · PI LOMBROSO, PAUL J · 1999 to 2014
$5.0M
Subcellular Localization of Cav1.2 by alpha-actininR01AG017502 · NIA · UNIVERSITY OF WISCONSIN MADISON · PI HELL, JOHANNES W · 2000 to 2011
$3.3M
POSTSYNAPTIC SIGNALING PATHWAYSR01NS035563 · NINDS · UNIVERSITY OF WISCONSIN MADISON · PI HELL, JOHANNES W · 1997 to 2010
$3.1M
The Role of STEP in SchizophreniaR01MH091037 · NIMH · YALE UNIVERSITY · PI LOMBROSO, PAUL J · 2011 to 2015
$1.8M
Subcellular Localization of Cav1.2 by a-actininR56AG017502 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI HELL, JOHANNES W · 2015 to 2015
$381k
MOLECULAR AND CELLULAR ANALYSES OF BRAIN ENRICHED PTPSR29MH052711 · NIMH · YALE UNIVERSITY · PI LOMBROSO, PAUL J · 1994 to 1998
–
NIA NIH HHS AG017502NIA NIH HHS R01 AG017502NIA NIH HHS R56 AG017502NIMH NIH HHS MH052711NIMH NIH HHS MH091037NIMH NIH HHS R01 MH052711NIMH NIH HHS R01 MH091037
6 · The paper itself

Abstract

Proline-rich tyrosine kinase 2 (Pyk2) is a member of the focal adhesion kinase family and is highly expressed in brain and hematopoietic cells. Pyk2 plays diverse functions in cells, including the regulation of cell adhesion, migration, and cytoskeletal reorganization. In the brain, it is involved in the induction of long term potentiation through regulation of N-methyl-d-aspartate receptor trafficking. This occurs through the phosphorylation and activation of Src family tyrosine kinase members, such as Fyn, that phosphorylate GluN2B at Tyr(1472). Phosphorylation at this site leads to exocytosis of GluN1-GluN2B receptors to synaptic membranes. Pyk2 activity is modulated by phosphorylation at several critical tyrosine sites, including Tyr(402). In this study, we report that Pyk2 is a substrate of striatal-enriched protein-tyrosine phosphatase (STEP). STEP binds to and dephosphorylates Pyk2 at Tyr(402). STEP KO mice showed enhanced phosphorylation of Pyk2 at Tyr(402) and of the Pyk2 substrates paxillin and ASAP1. Functional studies indicated that STEP opposes Pyk2 activation after KCl depolarization of cortical slices and blocks Pyk2 translocation to postsynaptic densities, a key step required for Pyk2 activation and function. This is the first study to identify Pyk2 as a substrate for STEP.

Indexed as

Adaptor Proteins, Signal TransducingAnimalsCerebral CortexFocal Adhesion Kinase 2MiceMice, KnockoutNerve Tissue ProteinsPaxillinPhosphorylationPost-Synaptic DensityProtein BindingProtein Tyrosine Phosphatases, Non-ReceptorReceptors, N-Methyl-D-AspartateAdaptor Proteins, Signal TransducingAsap1 protein, mouseFocal Adhesion Kinase 2Nerve Tissue ProteinsNR2B NMDA receptorPaxillinProtein Tyrosine Phosphatases, Non-ReceptorPtk2b protein, mousePtpn5 protein, mousePxn protein, mouseReceptors, N-Methyl-D-Aspartate

Identifiers

PMID22544749
PMCPMC3375518
OpenAlexW2032884140

What OpenQuestion holds

Textmetadata
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.