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Cruz IN, Barry CS, Kramer HB, Chuang CC, Lloyd S, van der Spoel AC, Platt FM, Yang M, Davis BG. Glycomimetic affinity-enrichment proteomics identifies partners for a clinically-utilized iminosugar. Chem Sci 2013; 4:3442-3446. [PMID: 31031905 PMCID: PMC6485602 DOI: 10.1039/c3sc50826a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Widescale evaluation of interacting partners for carbohydrates is an underexploited area. Probing of the 'glyco-interactome' has particular relevance given the lack of direct genetic control of glycoconjugate biosynthesis. Here we design, create and utilize a natural product-derived glycomimetic iminosugar probe in a Glycomimetic Affinity-enrichment Proteomics (glyco-AeP) strategy to elucidate key interactions directly from mammalian tissue. The binding partners discovered here and the associated genomic analysis implicate a subset of chaperone and junctional proteins as important in male fertility. Such repurposing of existing therapeutics thus creates direct routes to probing in vivo function. The success of this strategy suggests a general approach to discovering 'carbohydrate-active' partners in biology.
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Affiliation(s)
- Isa N. Cruz
- Department of Pharmaceutical & Biological Chemistry, UCL School of Pharmacy, University College London, 29/39 Brunswick Square, London, WC1N 1AX, UK
| | - Conor S. Barry
- Department of Chemistry, Chemistry Research Laboratory, Oxford University, Mansfield Road, Oxford, OX1 3TA, UK
| | - Holger B. Kramer
- Department of Physiology, Anatomy and Genetics, University of Oxford, South Parks Road, Oxford, OX1 3PT, UK
| | - C. Celeste Chuang
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK
| | - Sarah Lloyd
- MRC Prion Unit, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK
| | | | - Frances M. Platt
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK
| | - Min Yang
- Department of Pharmaceutical & Biological Chemistry, UCL School of Pharmacy, University College London, 29/39 Brunswick Square, London, WC1N 1AX, UK
| | - Benjamin G. Davis
- Department of Chemistry, Chemistry Research Laboratory, Oxford University, Mansfield Road, Oxford, OX1 3TA, UK
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