Evidence map›Paper›PMID 20844588›Full record

ArticlePloS one2010

Nucleo-cytoplasmic localization domains regulate Krüppel-like factor 6 (KLF6) protein stability and tumor suppressor function.

Estefanía Rodríguez, Nana Aburjania, Nolan M Priedigkeit, Analisa DiFeo, John A Martignetti

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

22 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
  2. Molecular function of Krüppel-like factor 7 in biology.Acta biochimica et biophysica Sinica · 2023
    Review
  3. Article
  4. Review
  5. Article
  6. [Nucleus translocation of membrane/cytoplasm proteins in tumor cells].Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2019
    Article
  7. Article
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  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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  18. Article
  19. Article
  20. Krüppel-like Factor 7 engineered for transcriptional activation promotes axon regeneration in the adult corticospinal tract.Proceedings of the National Academy of Sciences of the United States of America · 2012
    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.

Estefanía RodríguezDepartment of Genetics and Genomic Sciences, Mount Sinai School of Medicine, New York, New York, United States of America.
Nana Aburjania
Nolan M Priedigkeit
Analisa DiFeo
John A Martignetti
Icahn School of Medicine at Mount Sinai · US

Funding

Role of the tumor suppressor KLF6 in prostate cancerR01CA122332 · NCI · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI MARTIGNETTI, JOHN A · 2007 to 2011
$1.6M
NCI NIH HHS R01 CA122332
6 · The paper itself

Abstract

backgroundThe tumor suppressor KLF6 and its oncogenic cytoplasmic splice variant KLF6-SV1 represent a paradigm in cancer biology in that their antagonistic cancer functions are encoded within the same gene. As a consequence of splicing, KLF6-SV1 loses both the C-terminus C2H2 three zinc finger (ZF) domain, which characterizes all KLF proteins, as well as the adjacent 5' basic region (5BR), a putative nuclear localization signal (NLS). It has been hypothesized that this NLS is a functional domain critical to direct the distinct subcellular localization of the tumor suppressor and its splice variant. METHODOLOGY/PRINCIPAL

findingsIn this study, we demonstrate using EGFP fusion constructs that KLF6/KLF6-SV1 nucleo-cytoplasmic transport is not regulated by the 5' basic region but activated by a novel NLS encoded within the ZF domain, and a nuclear export signal (NES) located in the first 16 amino acids of the shared N-terminus sequence. We demonstrate KLF6 nuclear export to be Crm1-dependent. The dysregulation of nucleo-cytoplasmic transport when disrupting the KLF6 NLS using site-directed mutagenesis showed that its integrity is necessary for appropriate protein stability. Moreover, these mutations impaired transcriptional induction of two KLF6 well-characterized target genes, E-cadherin and p21, as shown by RT-PCR and luciferase promoter assays. The addition of the ZF domain to KLF6-SV1 results in its nuclear localization and a markedly decreased half-life similar to wild type KLF6. CONCLUSIONS/SIGNIFICANCE: We describe the domains that control KLF6 nucleo-cytoplasmic shuttling and how these domains play a role in KLF6 protein half-life and tumor suppressor function. The results begin to mechanistically explain, at least in part, the opposing functions of KLF6 and KLF6-SV1 in cancer.

Indexed as

Active Transport, Cell NucleusAmino Acid SequenceCell LineCell NucleusHalf-LifeHumansKruppel-Like Factor 6Kruppel-Like Transcription FactorsMolecular Sequence DataNuclear Export SignalsNuclear Localization SignalsProtein StabilityProtein Structure, TertiaryProto-Oncogene ProteinsKLF6 protein, humanKruppel-Like Factor 6Kruppel-Like Transcription FactorsNuclear Export SignalsNuclear Localization SignalsProto-Oncogene Proteins

Identifiers

PMID20844588
PMCPMC2936564
OpenAlexW2051570680

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.