Evidence map›Paper›PMID 20445084›Full record

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

Structural investigation of the C-terminal catalytic fragment of presenilin 1.

Solmaz Sobhanifar, Birgit Schneider, Frank Löhr, Daniel Gottstein, Teppei Ikeya, Krzysztof Mlynarczyk, Wojciech Pulawski, Umesh Ghoshdastider, Michal Kolinski, Slawomir Filipek and 3 more

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 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
6.5field-weighted citation impact, top 3% 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

29 citing papers in PubMed, 80 citations in OpenAlex.

  1. Review
  2. Towards a Unitary Hypothesis of Alzheimer's Disease Pathogenesis.Journal of Alzheimer's disease : JAD · 2024
    Article
  3. Article
  4. Article
  5. Structural and Chemical Biology of Presenilin Complexes.Cold Spring Harbor perspectives in medicine · 2017
    Review
  6. Article
  7. Structural basis of human γ-secretase assembly.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  8. Article
  9. Structural biology of presenilin 1 complexes.Molecular neurodegeneration · 2014
    Review
  10. Article
  11. Crystal structure of the γ-secretase component nicastrin.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  12. Article
  13. The γ-secretase complex: from structure to function.Frontiers in cellular neuroscience · 2014
    Review
  14. Article
  15. Review
  16. Review
  17. Structural biology of presenilins and signal peptide peptidases.The Journal of biological chemistry · 2013
    Review
  18. Article
  19. Article
  20. 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

13 authors at 3 institutions in 2 countries.

Solmaz SobhanifarInstitute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance and Cluster of Excellence Macromolecular Complexes, Goethe University, 60438 Frankfurt/Main, Germany.
Birgit Schneider
Frank Löhr
Daniel Gottstein
Teppei Ikeya
Krzysztof Mlynarczyk
Wojciech Pulawski
Umesh Ghoshdastider
Michal Kolinski
Slawomir Filipek
Peter Güntert
Frank Bernhard
Volker Dötsch
Goethe University Frankfurt · DEInternational Institute of Molecular and Cell Biology · PLFrankfurt Institute for Advanced Studies · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The gamma-secretase complex has a decisive role in the development of Alzheimer's disease, in that it cleaves a precursor to create the amyloid beta peptide whose aggregates form the senile plaques encountered in the brains of patients. Gamma-secretase is a member of the intramembrane-cleaving proteases which process their transmembrane substrates within the bilayer. Many of the mutations encountered in early onset familial Alzheimer's disease are linked to presenilin 1, the catalytic component of gamma-secretase, whose active form requires its endoproteolytic cleavage into N-terminal and C-terminal fragments. Although there is general agreement regarding the topology of the N-terminal fragment, studies of the C-terminal fragment have yielded ambiguous and contradictory results that may be difficult to reconcile in the absence of structural information. Here we present the first structure of the C-terminal fragment of human presenilin 1, as obtained from NMR studies in SDS micelles. The structure reveals a topology where the membrane is likely traversed three times in accordance with the more generally accepted nine transmembrane domain model of presenilin 1, but contains unique structural features adapted to accommodate the unusual intramembrane catalysis. These include a putative half-membrane-spanning helix N-terminally harboring the catalytic aspartate, a severely kinked helical structure toward the C terminus as well as a soluble helix in the assumed-to-be unstructured N-terminal loop.

Indexed as

BiocatalysisAmino Acid SequenceHumansHydrophobic and Hydrophilic InteractionsLipid BilayersMicellesMolecular Sequence DataNuclear Magnetic Resonance, BiomolecularPresenilin-1Protein Structure, SecondaryProtein Structure, TertiaryLipid BilayersMicellesPresenilin-1

Identifiers

PMID20445084
PMCPMC2906861
OpenAlexW1991518782

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.