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Schumann B, Malaker SA, Wisnovsky SP, Debets MF, Agbay AJ, Fernandez D, Wagner LJS, Lin L, Li Z, Choi J, Fox DM, Peh J, Gray MA, Pedram K, Kohler JJ, Mrksich M, Bertozzi CR. Bump-and-Hole Engineering Identifies Specific Substrates of Glycosyltransferases in Living Cells. Mol Cell 2020. [PMID: 32325029 DOI: 10.1016/jmolcel.2020.03.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
Studying posttranslational modifications classically relies on experimental strategies that oversimplify the complex biosynthetic machineries of living cells. Protein glycosylation contributes to essential biological processes, but correlating glycan structure, underlying protein, and disease-relevant biosynthetic regulation is currently elusive. Here, we engineer living cells to tag glycans with editable chemical functionalities while providing information on biosynthesis, physiological context, and glycan fine structure. We introduce a non-natural substrate biosynthetic pathway and use engineered glycosyltransferases to incorporate chemically tagged sugars into the cell surface glycome of the living cell. We apply the strategy to a particularly redundant yet disease-relevant human glycosyltransferase family, the polypeptide N-acetylgalactosaminyl transferases. This approach bestows a gain-of-chemical-functionality modification on cells, where the products of individual glycosyltransferases can be selectively characterized or manipulated to understand glycan contribution to major physiological processes.
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Affiliation(s)
- Benjamin Schumann
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA; Chemical Glycobiology Laboratory, The Francis Crick Institute, NW1 1AT London, United Kingdom; Department of Chemistry, Imperial College London, W12 0BZ London, United Kingdom.
| | | | | | | | | | - Daniel Fernandez
- Stanford ChEM-H Macromolecular Structure Knowledge Center, Stanford, CA 94305, USA
| | | | - Liang Lin
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Zhen Li
- Chemical Glycobiology Laboratory, The Francis Crick Institute, NW1 1AT London, United Kingdom; Department of Chemistry, Imperial College London, W12 0BZ London, United Kingdom
| | - Junwon Choi
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | | | - Jessie Peh
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - Melissa Anne Gray
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - Kayvon Pedram
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - Jennifer Jean Kohler
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Milan Mrksich
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Carolyn Ruth Bertozzi
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA; Howard Hughes Medical Institute, Stanford, CA 94305, USA.
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Schumann B, Malaker SA, Wisnovsky SP, Debets MF, Agbay AJ, Fernandez D, Wagner LJS, Lin L, Li Z, Choi J, Fox DM, Peh J, Gray MA, Pedram K, Kohler JJ, Mrksich M, Bertozzi CR. Bump-and-Hole Engineering Identifies Specific Substrates of Glycosyltransferases in Living Cells. Mol Cell 2020; 78:824-834.e15. [PMID: 32325029 PMCID: PMC7276986 DOI: 10.1016/j.molcel.2020.03.030] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 02/18/2020] [Accepted: 03/24/2020] [Indexed: 12/12/2022]
Abstract
Studying posttranslational modifications classically relies on experimental strategies that oversimplify the complex biosynthetic machineries of living cells. Protein glycosylation contributes to essential biological processes, but correlating glycan structure, underlying protein, and disease-relevant biosynthetic regulation is currently elusive. Here, we engineer living cells to tag glycans with editable chemical functionalities while providing information on biosynthesis, physiological context, and glycan fine structure. We introduce a non-natural substrate biosynthetic pathway and use engineered glycosyltransferases to incorporate chemically tagged sugars into the cell surface glycome of the living cell. We apply the strategy to a particularly redundant yet disease-relevant human glycosyltransferase family, the polypeptide N-acetylgalactosaminyl transferases. This approach bestows a gain-of-chemical-functionality modification on cells, where the products of individual glycosyltransferases can be selectively characterized or manipulated to understand glycan contribution to major physiological processes.
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Affiliation(s)
- Benjamin Schumann
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA; Chemical Glycobiology Laboratory, The Francis Crick Institute, NW1 1AT London, United Kingdom; Department of Chemistry, Imperial College London, W12 0BZ London, United Kingdom.
| | | | | | | | | | - Daniel Fernandez
- Stanford ChEM-H Macromolecular Structure Knowledge Center, Stanford, CA 94305, USA
| | | | - Liang Lin
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Zhen Li
- Chemical Glycobiology Laboratory, The Francis Crick Institute, NW1 1AT London, United Kingdom; Department of Chemistry, Imperial College London, W12 0BZ London, United Kingdom
| | - Junwon Choi
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | | | - Jessie Peh
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - Melissa Anne Gray
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - Kayvon Pedram
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - Jennifer Jean Kohler
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Milan Mrksich
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Carolyn Ruth Bertozzi
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA; Howard Hughes Medical Institute, Stanford, CA 94305, USA.
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