Evidence map›Paper›PMID 12660154›Full record

ArticleThe EMBO journal2003

Elucidation of substrate binding interactions in a membrane transport protein by mass spectrometry.

Adam B Weinglass, Julian P Whitelegge, Yonglin Hu, Gillian E Verner, Kym F Faull, H Ronald Kaback

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

27 citing papers in PubMed, 53 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. It takes two to tango: The dance of the permease.The Journal of general physiology · 2019
    Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Structure of sugar-bound LacY.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Validation of membrane protein topology models by oxidative labeling and mass spectrometry.Journal of the American Society for Mass Spectrometry · 2012
    Article
  17. Article
  18. Mass spectrometry accelerates membrane protein analysis.Trends in biochemical sciences · 2011
    Review
  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

6 authors at 1 institution in 1 country.

Adam B WeinglassDepartment of Physiology, Molecular Biology Institute, University of California Los Angeles, Los Angeles, CA 90095-1662, USA.
Julian P Whitelegge
Yonglin Hu
Gillian E Verner
Kym F Faull
H Ronald Kaback
University of California, Los Angeles · US

Funding

NEW APPROACHES TO MEMBRANE PROTEIN STRUCTURESR01DK051131 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KABACK, HOWARD RONALD · 1996 to 2014
$5.2M
Dynamics of the Lactose Permease of Escherichia ColiR56DK051131 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KABACK, HOWARD RONALD · 2015 to 2015
$154k
NIDDK NIH HHS DK51131-07NIDDK NIH HHS R01 DK051131NIDDK NIH HHS R56 DK051131
6 · The paper itself

Abstract

Integration of biochemical and biophysical data on the lactose permease of Escherichia coli has culminated in a molecular model that predicts substrate-protein proximities which include interaction of a hydroxyl group in the galactopyranosyl ring with Glu269. In order to test this hypothesis, we studied covalent modification of carboxyl groups with carbodiimides using electrospray ionization mass spectrometry (ESI-MS) and demonstrate that substrate protects the permease against carbodiimide reactivity. Further more, a significant proportion of the decrease in carbodiimide reactivity occurs specifically in a nanopeptide containing Glu269. In contrast, carbodiimide reactivity of mutant Glu269-->Asp that exhibits lower affinity is unaffected by substrate. By monitoring the ability of different substrate analogs to protect against carbodiimide modification of Glu269, it is suggested that the C-3 OH group of the galactopyranosyl ring may play an important role in specificity, possibly by H-bonding with Glu269. The approach demonstrates that mass spectrometry can provide a powerful means of analyzing ligand interactions with integral membrane proteins.

Indexed as

Escherichia coli ProteinsMonosaccharide Transport ProteinsSymportersAmino Acid SubstitutionCarbodiimidesChromatography, High Pressure LiquidEscherichia coliMembrane Transport ProteinsPeptide FragmentsProtein BindingProtein ConformationSpectrometry, Mass, Electrospray IonizationSubstrate SpecificityCarbodiimidesEscherichia coli Proteinslactose permeaseLacY protein, E coliMembrane Transport ProteinsMonosaccharide Transport ProteinsPeptide FragmentsSymporters

Identifiers

PMID12660154
PMCPMC152890
OpenAlexW2026418795

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.