Evidence map›Paper›PMID 17108181›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2006

Structure of the catalytic pore of gamma-secretase probed by the accessibility of substituted cysteines.

Chihiro Sato, Yuichi Morohashi, Taisuke Tomita, Takeshi Iwatsubo

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
8.4field-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

80 citing papers in PubMed, 146 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Genetics, Functions, and Clinical Impact of Presenilin-1 (PSEN1) Gene.International journal of molecular sciences · 2022
    Review
  5. Review
  6. Review
  7. Specific Mutations in Aph1 Cause γ-Secretase Activation.International journal of molecular sciences · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Conformational Dynamics of Transmembrane Domain 3 of Presenilin 1 Is Associated with the Trimming Activity of γ-Secretase.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Activation of γ-Secretase Trimming Activity by Topological Changes of Transmembrane Domain 1 of Presenilin 1.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  19. Review
  20. Article

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

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

4 authors at 3 institutions in 2 countries.

Chihiro SatoDepartment of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.
Yuichi Morohashi
Taisuke Tomita
Takeshi Iwatsubo
Washington University in St. Louis · USThe University of Tokyo · JPUniversity of Chicago · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Several single-span membrane proteins are cleaved within their transmembrane domains (TMDs) by intramembrane-cleaving proteases, although the structure of the active site executing intramembrane cleavage remains unknown. Here we use the substituted cysteine accessibility method to examine the structure of presenilin-1, a catalytic subunit of gamma-secretase, involved in amyloid beta protein generation in Alzheimer's disease and Notch signaling. We show that TMD6 and TMD7 of presenilin-1 contribute to the formation of a hydrophilic pore within the membrane. Residues at the luminal portion of TMD6 are predicted to form a subsite for substrate or inhibitor binding on the alpha-helix facing a hydrophilic milieu, whereas those around the GxGD catalytic motif within TMD7 are highly water accessible, suggesting formation of a hydrophilic structure within the pore. Collectively, our data suggest that the active site of gamma-secretase resides in a catalytic pore filled with water within the lipid bilayer and is tapered around the catalytic aspartates.

Indexed as

Amino Acid MotifsAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesAnimalsAspartic AcidBrainBrain ChemistryCatalytic DomainCell LineCell MembraneCysteineHumansMembrane LipidsMiceModels, MolecularAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesAspartic AcidCysteineMembrane LipidsPresenilin-1

Identifiers

PMID17108181
PMCPMC6674866
OpenAlexW2048048305

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.