Evidence map›Paper›PMID 18767161›Full record

ArticleProteins2009

Structure-based design of a T-cell receptor leads to nearly 100-fold improvement in binding affinity for pepMHC.

Jaafar N Haidar, Brian Pierce, Yong Yu, Weiwei Tong, Michael Li, Zhiping Weng

Open access · greenAbstract read
In one paragraph

Article in Proteins, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

45 citing papers in PubMed, 72 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Strategies and rules for tuning TCR-derived therapy.Expert reviews in molecular medicine · 2023
    Review
  5. Article
  6. Review
  7. ReliableJournal of chemical information and modeling · 2022
    Article
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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.

Jaafar N HaidarDepartment of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, USA.
Brian Pierce
Yong Yu
Weiwei Tong
Michael Li
Zhiping Weng
Boston University · US

Funding

Continual Development of Protein Docking AlgorithmsR01GM084884 · NIGMS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI WENG, ZHIPING · 2009 to 2012
$1.2M
NIGMS NIH HHS R01 GM084884
6 · The paper itself

Abstract

T-cell receptors (TCRs) are proteins that recognize peptides from foreign proteins bound to the major histocompatibility complex (MHC) on the surface of an antigen-presenting cell. This interaction enables the T cells to initiate a cell-mediated immune response to terminate cells displaying the foreign peptide on their MHC. Naturally occurring TCRs have high specificity but low affinity toward the peptide-MHC (pepMHC) complex. This prevents the usage of solubilized TCRs for diagnosis and treatment of viral infections or cancers. Efforts to enhance the binding affinity of several TCRs have been reported in recent years, through randomized libraries and in vitro selection. However, there have been no reported efforts to enhance the affinity via structure-based design, which allows more control and understanding of the mechanism of improvement. Here, we have applied structure-based design to a human TCR to improve its pepMHC binding. Our design method evolved based on iterative steps of prediction, testing, and generating more predictions based on the new data. The final design function, named ZAFFI, has a correlation of 0.77 and average error of 0.35 kcal/mol with the binding free energies of 26 point mutations for this system that we measured by surface plasmon resonance (SPR). Applying the filter that we developed to remove nonbinding predictions, this correlation increases to 0.85, and the average error decreases to 0.3 kcal/mol. Using this algorithm, we predicted and tested several point mutations that improved binding, with one giving over sixfold binding improvement. Four of the point mutations that improved binding were then combined to give a mutant TCR that binds the pepMHC 99 times more strongly than the wild-type TCR.

Indexed as

AlgorithmsBinding SitesHistocompatibility AntigensHumansKineticsMajor Histocompatibility ComplexPeptidesPoint MutationReceptors, Antigen, T-CellStructure-Activity RelationshipSurface Plasmon ResonanceHistocompatibility AntigensPeptidesReceptors, Antigen, T-Cell

Identifiers

PMID18767161
PMCPMC2696811
OpenAlexW2115770884

What OpenQuestion holds

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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.