Evidence map›Paper›PMID 20843805›Full record

ArticleThe Journal of biological chemistry2010

Down-regulation of intestinal apical calcium entry channel TRPV6 by ubiquitin E3 ligase Nedd4-2.

Wei Zhang, Tao Na, Guojin Wu, Haiyan Jing, Ji-Bin Peng

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

25 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Vitamin D and the intestine: Review and update.The Journal of steroid biochemistry and molecular biology · 2020
    Review
  9. Article
  10. PKC/Nedd4-2 Signaling Pathway Regulates the Cell Surface Expression of Drug Transporter hOAT1.Drug metabolism and disposition: the biological fate of chemicals · 2017
    Article
  11. Expression of Cav1.3 calcium channel in the human and mouse colon: posttranscriptional inhibition by IFNγ.American journal of physiology. Gastrointestinal and liver physiology · 2017
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Nedd4-2 does not regulate wt-CFTR in human airway epithelial cells.American journal of physiology. Lung cellular and molecular physiology · 2012
    Article
  18. Review
  19. Article
  20. 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

5 authors at 2 institutions in 1 country.

Wei ZhangNephrology Research and Training Center, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.
Tao Na
Guojin Wu
Haiyan Jing
Ji-Bin Peng
University of Alabama at Birmingham · USPediatric Nephrology of Alabama · US

Funding

Regulation of WNK4, a protein kinase mutated in a hereditary form of hypertensionR01DK072154 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI PENG, JI-BIN · 2007 to 2017
$2.2M
NIDDK NIH HHS R01 DK072154NIDDK NIH HHS R01DK072154
6 · The paper itself

Abstract

Nedd4-2 is an archetypal HECT ubiquitin E3 ligase that disposes target proteins for degradation. Because of the proven roles of Nedd4-2 in degradation of membrane proteins, such as epithelial Na(+) channel, we examined the effect of Nedd4-2 on the apical Ca(2+) channel TRPV6, which is involved in transcellular Ca(2+) transport in the intestine using the Xenopus laevis oocyte system. We demonstrated that a significant amount of Nedd4-2 protein was distributed to the absorptive epithelial cells in ileum, cecum, and colon along with TRPV6. When co-expressed in oocytes, Nedd4-2 and, to a lesser extent, Nedd4 down-regulated the protein abundance and Ca(2+) influx of TRPV6 and TRPV5, respectively. TRPV6 ubiquitination was increased, and its stability was decreased by Nedd4-2. The Nedd4-2 inhibitory effects on TRPV6 were partially blocked by proteasome inhibitor MG132 but not by the lysosome inhibitor chloroquine. The rate of TRPV6 internalization was not significantly altered by Nedd4-2. The HECT domain was essential to the inhibitory effect of Nedd4-2 on TRPV6 and to their association. The WW1 and WW2 domains interacted with TRPV6 terminal regions, and a disruption of the interactions by D204H and D376H mutations in the WW1 and WW2 domains increased TRPV6 ubiquitination and degradation. Thus, WW1 and WW2 may serve as a molecular switch to limit the ubiquitination of TRPV6 by the HECT domain. In conclusion, Nedd4-2 may regulate TRPV6 protein abundance in intestinal epithelia by controlling TRPV6 ubiquitination.

Indexed as

AnimalsBlotting, WesternCalciumCalcium ChannelsDown-RegulationEndosomal Sorting Complexes Required for TransportHumansImmunoprecipitationIntestinal MucosaIntestinesNedd4 Ubiquitin Protein LigasesOocytesRatsReverse Transcriptase Polymerase Chain ReactionRNA, MessengerTRPV Cation ChannelsCalciumCalcium ChannelsEndosomal Sorting Complexes Required for TransportNedd4L protein, humanNEDD4L protein, ratnedd4l protein, XenopusNedd4 protein, humanNedd4 protein, ratNedd4 protein, XenopusNedd4 Ubiquitin Protein LigasesRNA, MessengerTRPV6 protein, humanTRPV Cation ChannelsUbiquitinUbiquitin-Protein LigasesXenopus Proteins

Identifiers

PMID20843805
PMCPMC2978587
OpenAlexW1967936683

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.