1. Biochemistry and Chemical Biology
  2. Immunology and Inflammation
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Fine-tuning of substrate preferences of the Src-family kinase Lck revealed through a high-throughput specificity screen

  1. Neel H Shah
  2. Mark Löbel
  3. Arthur Weiss
  4. John Kuriyan  Is a corresponding author
  1. University of California, Berkeley, United States
  2. University of California, San Francisco, United States
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Cite this article as: eLife 2018;7:e35190 doi: 10.7554/eLife.35190

Abstract

The specificity of tyrosine kinases is predominantly attributed to localization effects dictated by non-catalytic domains. We developed a method to profile the specificities of tyrosine kinases by combining bacterial surface-display of peptide libraries with next-generation sequencing. Using this, we showed that the tyrosine kinase ZAP-70, which is critical for T cell signaling, discriminates substrates through an electrostatic selection mechanism encoded within its catalytic domain (Shah et al. 2016). Here, we expand this high-throughput platform to analyze the intrinsic specificity of any tyrosine kinase domain against thousands of peptides derived from human tyrosine phosphorylation sites. Using this approach, we find a difference in the electrostatic recognition of substrates between the closely-related Src-family kinases Lck and c-Src. This divergence likely reflects the specialization of Lck to act in concert with ZAP-70 in T cell signaling. These results point to the importance of direct recognition at the kinase active site in fine-tuning specificity.

Article and author information

Author details

  1. Neel H Shah

    Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, United States
    Competing interests
    No competing interests declared.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-1186-0626
  2. Mark Löbel

    Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, United States
    Competing interests
    No competing interests declared.
  3. Arthur Weiss

    Rosalind Russell/Ephraim P. Engleman Rheumatology Research Center, Department of Medicine, University of California, San Francisco, San Francisco, United States
    Competing interests
    No competing interests declared.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-2414-9024
  4. John Kuriyan

    Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, United States
    For correspondence
    jkuriyan@mac.com
    Competing interests
    John Kuriyan, Senior editor, eLife.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-4414-5477

Funding

Damon Runyon Cancer Research Foundation

  • Neel H Shah

National Institutes of Health (P01 AI091580)

  • Arthur Weiss

German Academic Exchange Service London

  • Mark Löbel

The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.

Reviewing Editor

  1. Philip A. Cole, Harvard Medical School, United States

Publication history

  1. Received: January 19, 2018
  2. Accepted: March 15, 2018
  3. Accepted Manuscript published: March 16, 2018 (version 1)
  4. Version of Record published: April 6, 2018 (version 2)

Copyright

© 2018, Shah et al.

This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.

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Further reading

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