Evidence map›Paper›PMID 21115843›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2010

Activation and intrinsic gamma-secretase activity of presenilin 1.

Kwangwook Ahn, Christopher C Shelton, Yuan Tian, Xulun Zhang, M Lane Gilchrist, Sangram S Sisodia, Yue-Ming Li

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed
7.9field-weighted citation impact, top 2% 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

98 citing papers in PubMed, 134 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. γ-Secretase fanning the fire of innate immunity.Biochemical Society transactions · 2023
    Review
  6. Article
  7. Review
  8. γ-Secretase in Alzheimer's disease.Experimental & molecular medicine · 2022
    Review
  9. Review
  10. Article
  11. Covalent fragment inhibits intramembrane proteolysis.Frontiers in molecular biosciences · 2022
    Article
  12. Article
  13. Levistolide A Attenuates Alzheimer's Pathology Through Activation of the PPARγ Pathway.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2021
    Article
  14. Article
  15. Article
  16. A Pentacyclic Triterpene fromACS chemical neuroscience · 2020
    Article
  17. Review
  18. Review
  19. Article
  20. Article

38 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 1 country.

Kwangwook AhnMolecular Pharmacology and Chemistry Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065.
Christopher C Shelton
Yuan Tian
Xulun Zhang
M Lane Gilchrist
Sangram S Sisodia
Yue-Ming Li
Memorial Sloan Kettering Cancer Center · USUniversity of Chicago · USCity College of New York · USCornell University · US

Funding

CANCER PHARMACOLOGYT32CA062948 · NCI · WEILL MEDICAL COLL OF CORNELL UNIV · PI LORRAINE J GUDAS · 1994 to 2026
$12.1M
Regulation and Function of Gamma-SecretaseR01AG026660 · NIA · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI LI, YUEMING · 2005 to 2015
$3.5M
NCI NIH HHS T32 CA062948NIA NIH HHS AG026660NIA NIH HHS R01 AG026660
6 · The paper itself

Abstract

A complex composed of presenilin (PS), nicastrin, PEN-2, and APH-1 is absolutely required for γ-secretase activity in vivo. Evidence has emerged to suggest a role for PS as the catalytic subunit of γ-secretase, but it has not been established that PS is catalytically active in the absence of associated subunits. We now report that bacterially synthesized, recombinant PS (rPS) reconstituted into liposomes exhibits γ-secretase activity. Moreover, an rPS mutant that lacks a catalytic aspartate residue neither exhibits reconstituted γ-secretase activity nor interacts with a transition-state γ-secretase inhibitor. Importantly, we demonstrate that rPS harboring mutations that cause early onset familial Alzheimer's disease (FAD) lead to elevations in the ratio of Aβ42 to Aβ40 peptides produced from a wild-type APP substrate and that rPS enhances the Aβ42/Aβ40 peptide ratio from FAD-linked mutant APP substrates, findings that are entirely consistent with the results obtained in in vivo settings. Thus, γ-secretase cleavage specificity is an inherent property of the polypeptide. Finally, we demonstrate that PEN2 is sufficient to promote the endoproteolysis of PS1 to generate the active form of γ-secretase. Thus, we conclusively establish that activated PS is catalytically competent and the bimolecular interaction of PS1 and PEN2 can convert the PS1 zymogen to an active protease.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesEnzyme ActivationHumansMembrane ProteinsMutationPeptide FragmentsPresenilin-1Protein SubunitsProteolipidsRecombinant ProteinsAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesMembrane ProteinsPeptide FragmentsPresenilin-1Protein SubunitsProteolipidsproteoliposomesPSEN1 protein, humanPSENEN protein, humanRecombinant Proteins

Identifiers

PMID21115843
PMCPMC3003001
OpenAlexW2013306109

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.