Evidence map›Paper›PMID 31015204›Full record

ArticleThe Journal of biological chemistry2019

Engineering nanomolar peptide ligands that differentially modulate EphA2 receptor signaling.

Maricel Gomez-Soler, Marina Petersen Gehring, Bernhard C Lechtenberg, Elmer Zapata-Mercado, Kalina Hristova, Elena B Pasquale

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. The Eph-ephrin system in neuropsychiatric and neurodevelopmental disorders.Journal of psychiatry & neuroscience : JPN · 2026
    Review
  4. Article
  5. Eph receptor signaling complexes in the plasma membrane.Trends in biochemical sciences · 2024
    Review
  6. Review
  7. Targeting the EphA2 pathway: could it be the way for bone sarcomas?Cell communication and signaling : CCS · 2024
    Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. 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 2 institutions in 1 country.

Maricel Gomez-SolerFrom the Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037 and.
Marina Petersen GehringFrom the Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037 and.
Bernhard C LechtenbergFrom the Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037 and lechtenberg.b@wehi.edu.au.ORCID 0000-0002-5674-6894
Elmer Zapata-Mercadothe Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218.ORCID 0000-0002-9766-8124
Kalina Hristovathe Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218.
Elena B PasqualeFrom the Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037 and elenap@sbpdiscovery.org.ORCID 0000-0002-5076-4848
Sanford Burnham Prebys Medical Discovery Institute · USJohns Hopkins University · US

Funding

Tumor Microenvironment and Cancer ImmunologyP30CA030199 · NCI · SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE · PI ELENA B PASQUALE · 1985 to 2026
$107.2M
Ligand functional selectivity in EphA2 receptor signalingR01GM131374 · NIGMS · SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE · PI Kalina Hristova, ELENA B PASQUALE · 2019 to 2026
$3.8M
Cyclic EphA4 peptide antagonists for neuroprotection in ALSR01NS087070 · NINDS · SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE · PI PASQUALE, ELENA B · 2014 to 2018
$3.5M
NCI NIH HHS P30 CA030199NIGMS NIH HHS R01 GM131374NINDS NIH HHS R01 NS087070
6 · The paper itself

Abstract

The EPH receptor A2 (EphA2) tyrosine kinase plays an important role in a plethora of biological and disease processes, ranging from angiogenesis and cancer to inflammation and parasitic infections. EphA2 is therefore considered an important drug target. Two short peptides previously identified by phage display, named YSA and SWL, are widely used as EphA2-targeting agents owing to their high specificity for this receptor. However, these peptides have only modest (micromolar) potency. Lack of structural information on the binding interactions of YSA and SWL with the extracellular EphA2 ligand-binding domain (LBD) has for many years precluded structure-guided improvements. We now report the high-resolution (1.53-2.20 Å) crystal structures of the YSA peptide and several of its improved derivatives in complex with the EphA2 LBD, disclosing that YSA targets the ephrin-binding pocket of EphA2 and mimics binding features of the ephrin-A ligands. The structural information obtained enabled iterative peptide modifications conferring low nanomolar potency. Furthermore, contacts observed in the crystal structures shed light on how C-terminal features can convert YSA derivatives from antagonists to agonists that likely bivalently interact with two EphA2 molecules to promote receptor oligomerization, autophosphorylation, and downstream signaling. Consistent with this model, quantitative FRET measurements in live cells revealed that the peptide agonists promote the formation of EphA2 oligomeric assemblies. Our findings now enable rational strategies to differentially modify EphA2 signaling toward desired outcomes by using appropriately engineered peptides. Such peptides could be used as research tools to interrogate EphA2 function and to develop pharmacological leads.

Indexed as

Signal TransductionAmino Acid SequenceBinding SitesCrystallography, X-RayEphrin-A1HumansLigandsMolecular Dynamics SimulationPeptidesPhosphorylationProtein BindingProtein EngineeringProtein MultimerizationProtein Structure, TertiaryReceptor, EphA2Recombinant ProteinsEphrin-A1LigandsPeptidesReceptor, EphA2Recombinant Proteinsagonistantagonistcancercrystal structuredimerizationEph receptorephrininflammationpeptidereceptor tyrosine kinase

Identifiers

PMID31015204
PMCPMC6552433
OpenAlexW2941379258

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.