Skip to main content
Log in

Structural and evolutionary exploration of the IL-3 family and its alpha subunit receptors

  • Original Article
  • Published:
Amino Acids Aims and scope Submit manuscript

Abstract

Interleukin-3 (IL-3) is a cytokine belonging to the family of common β (βc) and is involved in various biological systems. Its activity is mediated by the interaction with its receptor (IL-3R), a heterodimer composed of two distinct subunits: IL-3Rα and βc. IL-3 and its receptor, especially IL-3Rα, play a crucial role in pathologies like inflammatory diseases and therefore are interesting therapeutic targets. Here, we have performed an analysis of these proteins and their interaction based on structural and evolutionary information. We highlighted that IL-3 and IL-3Rα structural architectures are conserved across evolution and shared with other proteins belonging to the same βc family interleukin-5 (IL-5) and granulocyte–macrophage colony-stimulating factor (GM-CSF). The IL-3Rα/IL-3 interaction is mediated by a large interface in which most residues are surprisingly not conserved during evolution and across family members. In spite of this high variability, we suggested small regions constituted by few residues conserved during the evolution in both proteins that could be important for the binding affinity.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

Download references

Acknowledgements

The research was supported by the French National Research Agency with grant ANR-19-CE17-0021 (BASIN) for J.F., J.B., J.D. & A.G.d.B., the Laboratory of Excellence GR-Ex, reference ANR-11-LABX-0051, and the program “Investissements d’avenir” of the French National Research Agency, reference ANR-11-IDEX-0005-02 for J.F., J.D. and A.G.d.B, the Indo-French Centre for the Promotion of Advanced Research / CEFIPRA for collaborative grants (numbers 5302-2) for A.G.d.B. The funding bodies have no role in the design of the study and collection, analysis, and interpretation of data and in writing the manuscript.

Author information

Authors and Affiliations

Authors

Corresponding authors

Correspondence to Julien Diharce or Alexandre G. de Brevern.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Handling editor: S. C. E. Tosatto.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (DOCX 18531 KB)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Fogha, J., Bayry, J., Diharce, J. et al. Structural and evolutionary exploration of the IL-3 family and its alpha subunit receptors. Amino Acids 53, 1211–1227 (2021). https://doi.org/10.1007/s00726-021-03026-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00726-021-03026-3

Keywords

Navigation