Volume 132, Issue 47 pp. 21282-21291
Forschungsartikel

A Photoaffinity-Based Fragment-Screening Platform for Efficient Identification of Protein Ligands

Emma K. Grant

Emma K. Grant

GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY UK

Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL UK

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David J. Fallon

David J. Fallon

GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY UK

Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL UK

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Michael M. Hann

Michael M. Hann

GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY UK

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Ken G. M. Fantom

Ken G. M. Fantom

GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY UK

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Chad Quinn

Chad Quinn

GlaxoSmithKline, South Collegeville Road, Collegeville, PA, 19426 USA

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Francesca Zappacosta

Francesca Zappacosta

GlaxoSmithKline, South Collegeville Road, Collegeville, PA, 19426 USA

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Roland S. Annan

Roland S. Annan

GlaxoSmithKline, South Collegeville Road, Collegeville, PA, 19426 USA

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Chun-wa Chung

Chun-wa Chung

GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY UK

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Paul Bamborough

Paul Bamborough

GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY UK

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David P. Dixon

David P. Dixon

GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY UK

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Peter Stacey

Peter Stacey

GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY UK

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David House

David House

GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY UK

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Vipulkumar K. Patel

Vipulkumar K. Patel

GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY UK

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Nicholas C. O. Tomkinson

Nicholas C. O. Tomkinson

Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL UK

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Jacob T. Bush

Corresponding Author

Jacob T. Bush

GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY UK

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First published: 03 August 2020
Citations: 5

Abstract

Advances in genomic analyses enable the identification of new proteins that are associated with disease. To validate these targets, tool molecules are required to demonstrate that a ligand can have a disease-modifying effect. Currently, as tools are reported for only a fraction of the proteome, platforms for ligand discovery are essential to leverage insights from genomic analyses. Fragment screening offers an efficient approach to explore chemical space. Presented here is a fragment-screening platform, termed PhABits (PhotoAffinity Bits), which utilizes a library of photoreactive fragments to covalently capture fragment–protein interactions. Hits can be profiled to determine potency and the site of crosslinking, and subsequently developed as reporters in a competitive displacement assay to identify novel hit matter. The PhABit platform is envisioned to be widely applicable to novel protein targets, identifying starting points in the development of therapeutics.

Conflict of interest

The authors declare no conflict of interest.

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