Evidence map›Paper›PMID 26394723›Full record

ArticleChemistry (Weinheim an der Bergstrasse, Germany)2015

Conformational Flexibility in the Transmembrane Protein TSPO.

Łukasz Jaremko, Mariusz Jaremko, Karin Giller, Stefan Becker, Markus Zweckstetter

Open access · greenAbstract read
In one paragraph

Article in Chemistry (Weinheim an der Bergstrasse, Germany), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. TSPO Radioligands for Neuroinflammation: An Overview.Molecules (Basel, Switzerland) · 2024
    Review
  3. Article
  4. Review
  5. TSPO protein binding partners in bacteria, animals, and plants.Journal of bioenergetics and biomembranes · 2021
    Review
  6. Article
  7. Article
  8. Membrane-embedded TSPO: an NMR view.European biophysics journal : EBJ · 2021
    Article
  9. The Interplay of Cholesterol and Ligand Binding inMolecules (Basel, Switzerland) · 2021
    Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Review
  17. 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 2 institutions in 1 country.

Łukasz JaremkoDepartment for NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen (Germany).
Mariusz JaremkoDepartment for NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen (Germany).
Karin GillerDepartment for NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen (Germany).
Stefan BeckerDepartment for NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen (Germany).
Markus ZweckstetterDepartment for NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen (Germany). Markus.Zweckstetter@dzne.de.
Max Planck Institute for Biophysical Chemistry · DEUniversitätsmedizin Göttingen · DE

Funding

European Research Council 282008
6 · The paper itself

Abstract

The translocator protein (TSPO) is an integral membrane protein that interacts with a wide variety of endogenous ligands, such as cholesterol and porphyrins, and is also the target for several small molecules with substantial in vivo efficacy. When complexed with the TSPO-specific radioligand (R)-PK11195, TSPO folds into a rigid five-helix bundle. However, little is known about the structure and dynamics of TSPO in the absence of high-affinity ligands. By means of NMR spectroscopy, we show that TSPO exchanges between multiple conformations in the absence of (R)-PK11195. Extensive motions on time scales from pico- to microseconds occur all along the primary sequence of the protein, leading to a loss of stable tertiary interactions and local unfolding of the helical structure in the vicinity of the ligand-binding site. The flexible nature of TSPO highlights the importance of conformational plasticity in integral membrane proteins.

Indexed as

Binding SitesIsoquinolinesLigandsMagnetic Resonance SpectroscopyMembrane ProteinsProtein ConformationIsoquinolinesLigandsMembrane ProteinsPK 11195dynamicsfunctionmembrane proteinsNMR spectroscopysmall moleculesstructure

Identifiers

PMID26394723
PMCPMC5654506
OpenAlexW1941333725

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.