Evidence map›Paper›PMID 21348431›Full record

ArticleACS chemical biology2011

Selective inactivation of a human neuronal silencing phosphatase by a small molecule inhibitor.

Mengmeng Zhang, Eun Jeong Cho, Gayle Burstein, Dionicio Siegel, Yan Zhang

Abstract read
In one paragraph

Article in ACS chemical biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Dephosphorylating eukaryotic RNA polymerase II.Biochimica et biophysica acta · 2016
    Review
  13. Article
  14. Panoramic view of a superfamily of phosphatases through substrate profiling.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. UBLCP1 is a 26S proteasome phosphatase that regulates nuclear proteasome activity.Proceedings of the National Academy of Sciences of the United States of America · 2011
    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.

Mengmeng ZhangDepartment of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712, USA.
Eun Jeong Cho
Gayle Burstein
Dionicio Siegel
Yan Zhang

Funding

Discovery of Inhibitors for Small C-terminal Domain PhosphatasesR03DA030556 · NIDA · UNIVERSITY OF TEXAS AT AUSTIN · PI ZHANG, YAN JESSIE · 2010 to 2011
$75k
NIDA NIH HHS R03 DA030556NIDA NIH HHS R03DA030556
6 · The paper itself

Abstract

The unstructured C-terminal domain (CTD) of eukaryotic RNA polymerase II dynamically regulates the process of transcription by recruiting different factors to nascent mRNA through its multiple phosphorylation patterns. A newly discovered class of phosphatases, the human small C-terminal domain phosphatases (Scp's), specifically dephosphorylates phosphorylated Ser(5) (phospho.Ser5) of the tandem heptad repeats of the CTD of RNA polymerase II. Scp's also function as transcription regulators that epigenetically silence the expression of specific neuronal genes, whose inactivation leads to neuronal stem cell differentiation. Small molecule inhibitors of Scp's will be valuable for elucidating their mechanism in nervous system development and can possibly offer new strategies to treat diseases related to neurodegeneration. Despite the difficulty in developing selective inhibitors of protein phosphatases, we have recognized a characteristic hydrophobic binding pocket adjacent to the active site in Scp's that may facilitate selective inhibition. In the present study, we successfully identified the first selective lead compound, rabeprazole, for the Scp/TFIIF-interacting CTD phosphatase (Fcp) family. The high-resolution crystal structure of rabeprazole-bound Scp1 showed that the compound indeed binds to the hydrophobic binding pocket. We further confirmed that rabeprazole only targets Scp's but not its close family members Fcp1 and Dullard or bacteriophage λ Ser/Thr phosphatase. Such specificity may prove important for In Vivo studies since accidental inhibition of Fcp1 or Dullard would result in cell malfunctions and even cell death.

Indexed as

2-PyridinylmethylsulfinylbenzimidazolesAmino Acid SequenceCrystallography, X-RayDrug DesignEnzyme InhibitorsHumansNeuronsPhosphoprotein PhosphatasesRabeprazoleRNA Polymerase II2-PyridinylmethylsulfinylbenzimidazolesEnzyme InhibitorsPhosphoprotein PhosphatasesRabeprazoleRNA Polymerase II

Identifiers

PMID21348431
PMCPMC4814157
OpenAlexW1996987167

What OpenQuestion holds

Textmetadata
LicenceTDM
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.