Evidence map›Paper›PMID 33020303›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

How the T cell signaling network processes information to discriminate between self and agonist ligands.

Raman S Ganti, Wan-Lin Lo, Darren B McAffee, Jay T Groves, Arthur Weiss, Arup K Chakraborty

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
–field-weighted citation impact
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

32 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. A unifying model of LAT condensates in reconstitution experiments.bioRxiv : the preprint server for biology · 2025
    Article
  7. Parallel reactions on a single T cell receptor offer a robust kinetic proofreading mechanism.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Review
  9. Proofreading and single-molecule sensitivity in T cell receptor signaling by condensate nucleation.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  10. Differential roles of kinetic on- and off-rates in T-cell receptor signal integration revealed with a modified Fab'-DNA ligand.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  11. Article
  12. Review
  13. Mathematical models of TCR initial triggering.Frontiers in immunology · 2024
    Review
  14. Antigen perception in T cells by long-term Erk and NFAT signaling dynamics.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. Proofreading does not result in more reliable ligand discrimination in receptor signaling due to its inherent stochasticity.Proceedings of the National Academy of Sciences of the United States of America · 2023
    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

6 authors.

Raman S GantiInstitute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139.
Wan-Lin LoDivision of Rheumatology, Rosalind Russell and Ephraim P. Engleman Arthritis Research Center, Department of Medicine, University of California, San Francisco, CA 94143.ORCID 0000-0002-9074-6847
Darren B McAffeeDepartment of Chemistry, University of California, Berkeley, CA 94720.
Jay T GrovesDepartment of Chemistry, University of California, Berkeley, CA 94720.
Arthur WeissDivision of Rheumatology, Rosalind Russell and Ephraim P. Engleman Arthritis Research Center, Department of Medicine, University of California, San Francisco, CA 94143; aweiss@medicine.ucsf.edu arupc@mit.edu.ORCID 0000-0002-2414-9024
Arup K ChakrabortyInstitute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139; aweiss@medicine.ucsf.edu arupc@mit.edu.

Funding

Understand the metabolic fitness of naïve T cellsP01AI091580 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI ARTHUR WEISS · 2011 to 2026
$31.1M
The cell and molecular mechanisms underlying CD28 costimulationR37AI114575 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI WEISS, ARTHUR · 2016 to 2023
$3.2M
Howard Hughes Medical InstituteNIAID NIH HHS P01 AI091580NIAID NIH HHS R37 AI114575
6 · The paper itself

Abstract

T cells exhibit remarkable sensitivity and selectivity in detecting and responding to agonist peptides (p) bound to MHC molecules in a sea of self pMHC molecules. Despite much work, understanding of the underlying mechanisms of distinguishing such ligands remains incomplete. Here, we quantify T cell discriminatory capacity using channel capacity, a direct measure of the signaling network's ability to discriminate between antigen-presenting cells (APCs) displaying either self ligands or a mixture of self and agonist ligands. This metric shows how differences in information content between these two types of peptidomes are decoded by the topology and rates of kinetic proofreading signaling steps inside T cells. Using channel capacity, we constructed numerically substantiated hypotheses to explain the discriminatory role of a recently identified slow LAT Y132 phosphorylation step. Our results revealed that in addition to the number and kinetics of sequential signaling steps, a key determinant of discriminatory capability is spatial localization of a minimum number of these steps to the engaged TCR. Biochemical and imaging experiments support these findings. Our results also reveal the discriminatory role of early negative feedback and necessary amplification conferred by late positive feedback.

Indexed as

Adaptor Proteins, Signal TransducingAntigen-Presenting CellsHumansJurkat CellsKineticsLigandsLymphocyte ActivationMajor Histocompatibility ComplexMembrane ProteinsModels, TheoreticalPeptide FragmentsPhosphorylationReceptors, Antigen, T-CellSignal TransductionT-LymphocytesAdaptor Proteins, Signal TransducingLAT protein, humanLigandsMembrane ProteinsPeptide FragmentsReceptors, Antigen, T-Cellkinetic proofreadingmodelingself/agonist peptidesT cell receptor ligand discrimination

Identifiers

PMID33020303
PMCPMC7585026

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.