Evidence map›Paper›PMID 16498080›Full record

ArticleAmerican journal of respiratory cell and molecular biology2006

Phosphorylation of adaptor protein-2 mu2 is essential for Na+,K+-ATPase endocytosis in response to either G protein-coupled receptor or reactive oxygen species.

Zongpei Chen, Rafael T Krmar, Laura Dada, Riad Efendiev, Ingo B Leibiger, Carlos H Pedemonte, Adrian I Katz, Jacob I Sznajder, Alejandro M Bertorello

Open access · greenAbstract read
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.2field-weighted citation impact, top 14% 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

28 citing papers in PubMed, 46 citations in OpenAlex.

  1. Review
  2. Review
  3. The effect of cytochrome c on Na,K-ATPase.Journal of bioenergetics and biomembranes · 2024
    Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. NaMolecules (Basel, Switzerland) · 2021
    Review
  9. Review
  10. Article
  11. DR region of NaScientific reports · 2018
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Reciprocal regulation of endocytosis and metabolism.Cold Spring Harbor perspectives in biology · 2014
    Review
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 2 countries.

Zongpei ChenDepartment of Medicine, Membrane Signaling Networks, Karolinska Institutet, Karolinska Hospital, Stockholm, Sweden.
Rafael T Krmar
Laura Dada
Riad Efendiev
Ingo B Leibiger
Carlos H Pedemonte
Adrian I Katz
Jacob I Sznajder
Alejandro M Bertorello
Northwestern University · US

Funding

Role of LUBAC and Na K-ATPase in Acute Lung InjuryP01HL071643 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI CHANDEL, NAVDEEP S · 2003 to 2019
$30.8M
Role and Regulation of Sodium, Potasium ATPase in LungR37HL048129 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SZNAJDER, JACOB I · 2008 to 2017
$4.0M
ROLE AND REGULATION OF SODIUM, POTASSIUM ATPASE IN LUNGR01HL048129 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SZNAJDER, JACOB I · 1996 to 2007
$2.7M
Dopamine inhibition of proximal tubule Na, K-ATPaseR01DK062195 · NIDDK · UNIVERSITY OF HOUSTON · PI PEDEMONTE, CARLOS H · 2003 to 2006
$1.0M
NHLBI NIH HHS HL-48129NHLBI NIH HHS P01HL-071643NIDDK NIH HHS DK62195
6 · The paper itself

Abstract

Activation of G protein-coupled receptor by dopamine and hypoxia-generated reactive oxygen species promote Na+,K+-ATPase endocytosis. This effect is clathrin dependent and involves the activation of protein kinase C (PKC)-zeta and phosphorylation of the Na+,K+-ATPase alpha-subunit. Because the incorporation of cargo into clathrin vesicles requires association with adaptor proteins, we studied whether phosphorylation of adaptor protein (AP)-2 plays a role in its binding to the Na+,K+-ATPase alpha-subunit and thereby in its endocytosis. Dopamine induces a time-dependent phosphorylation of the AP-2 mu2 subunit. Using specific inhibitors and dominant-negative mutants, we establish that this effect was mediated by activation of the adaptor associated kinase 1/PKC-zeta isoform. Expression of the AP-2 mu2 bearing a mutation in its phosphorylation site (T156A) prevented Na+,K+-ATPase endocytosis and changes in activity induced by dopamine. Similarly, in lung alveolar epithelial cells, hypoxia-induced endocytosis of Na+,K+-ATPase requires the binding of AP-2 to the tyrosine-based motif (Tyr-537) located in the Na+,K+-ATPase alpha-subunit, and this effect requires phosphorylation of the AP-2 mu2 subunit. We conclude that phosphorylation of AP-2 mu2 subunit is essential for Na+,K+-ATPase endocytosis in response to a variety of signals, such as dopamine or reactive oxygen species.

Indexed as

Adaptor Protein Complex 2Adaptor Protein Complex mu SubunitsAnimalsCell HypoxiaCells, CulturedDopamineEndocytosisHumansModels, BiologicalMutationOpossumsPhosphorylationProtein BindingReactive Oxygen SpeciesReceptors, G-Protein-CoupledSodium-Potassium-Exchanging ATPaseAdaptor Protein Complex 2adaptor protein complex 2, mu 2 subunitAdaptor Protein Complex mu SubunitsDopamineReactive Oxygen SpeciesReceptors, G-Protein-CoupledSodium-Potassium-Exchanging ATPaseTyrosine

Identifiers

PMID16498080
PMCPMC2658693
OpenAlexW2002232867

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.