Evidence map›Paper›PMID 18059334›Full record

ArticleOncogene2008

Tyrosine phosphorylation regulates nuclear translocation of PKCdelta.

M J Humphries, A M Ohm, J Schaack, T S Adwan, M E Reyland

Abstract read
In one paragraph

Article in Oncogene, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

42 citing papers in PubMed, 64 citations in OpenAlex.

  1. Review
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  15. Review
  16. Article
  17. Protein kinase C: perfectly balanced.Critical reviews in biochemistry and molecular biology · 2018
    Review
  18. Article
  19. Article
  20. Control of nuclear-cytoplasmic shuttling of Ankrd54 by PKCδ.World journal of biological chemistry · 2017
    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 1 institution in 1 country.

M J HumphriesSchool of Dentistry, Program in Cell and Developmental Biology, University of Colorado at Denver and Health Sciences Center, Aurora, CO, USA.
A M Ohm
J Schaack
T S Adwan
M E Reyland
University of Colorado Denver · US

Funding

The functional role of microRNAs in the normal mammary glandP01HD038129 · NICHD · UNIVERSITY OF COLORADO DENVER · PI ANDERSON, STEVEN M · 2000 to 2015
$15.2M
Regulation of Salivary Cell Apoptosis by Protein Kinase CR01DE015648 · NIDCR · UNIVERSITY OF COLORADO DENVER · PI REYLAND, MARY ELAINE · 2004 to 2019
$5.6M
NICHD NIH HHS P01 HD038129NICHD NIH HHS P0I HD038129NIDCR NIH HHS R01 DE015648NIDCR NIH HHS R01 DE015648-01
6 · The paper itself

Abstract

PKCdelta is essential for apoptosis, but regulation of the proapoptotic function of this ubiquitous kinase is not well understood. Nuclear translocation of PKCdelta is necessary and sufficient to induce apoptosis and is mediated via a C-terminal bipartite nuclear localization sequence. However, PKCdelta is found predominantly in the cytoplasm of nonapoptotic cells, and the apoptotic signal that activates its nuclear translocation is not known. We show that in salivary epithelial cells, phosphorylation at specific tyrosine residues in the N-terminal regulatory domain directs PKCdelta to the nucleus where it induces apoptosis. Analysis of each tyrosine residue in PKCdelta by site-directed mutagenesis identified two residues, Y64 and Y155, as essential for nuclear translocation. Suppression of apoptosis correlated with suppressed nuclear localization of the Y --> F mutant proteins. Moreover, a phosphomimetic PKCdelta Y64D/Y155D mutant accumulated in the nucleus in the absence of an apoptotic signal. Forced nuclear accumulation of PKCdelta-Y64F and Y155F mutant proteins, by attachment of an SV40 nuclear localization sequence, fully reconstituted their ability to induce apoptosis, indicating that tyrosine phosphorylation per se is not required for apoptosis, but for targeting PKCdelta to the nucleus. We propose that phosphorylation/dephosphorylation of PKCdelta in the regulatory domain functions as a switch to promote cell survival or cell death.

Indexed as

AnimalsBase SequenceCell LineCell NucleusDNA PrimersIn Situ Nick-End LabelingMiceMutagenesis, Site-DirectedPhosphorylationProtein Kinase C-deltaProtein TransportTyrosineDNA PrimersProtein Kinase C-deltaTyrosine

Identifiers

PMID18059334
PMCPMC3285468
OpenAlexW2077665447

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.