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Expression system for structural and functional studies of human glycosylation enzymes

Journal Article · · Nature Chemical Biology
Vertebrate glycoproteins and glycolipids are synthesized in complex biosynthetic pathways localized predominantly within membrane compartments of the secretory pathway. The enzymes that catalyze these reactions are exquisitely specific, yet few have been extensively characterized because of challenges associated with their recombinant expression as functional products. We used a modular approach to create an expression vector library encoding all known human glycosyltransferases, glycoside hydrolases, and sulfotransferases, as well as other glycan-modifying enzymes. We then expressed the enzymes as secreted catalytic domain fusion proteins in mammalian and insect cell hosts, purified and characterized a subset of the enzymes, and determined the structure of one enzyme, the sialyltransferase ST6GalNAcII. Many enzymes were produced at high yields and at similar levels in both hosts, but individual protein expression levels varied widely. Furthermore, this expression vector library will be a transformative resource for recombinant enzyme production, broadly enabling structure–function studies and expanding applications of these enzymes in glycochemistry and glycobiology.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
NIH
OSTI ID:
1432876
Journal Information:
Nature Chemical Biology, Journal Name: Nature Chemical Biology Journal Issue: 2 Vol. 14; ISSN 1552-4450
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
ENGLISH

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Cited By (27)

N-Glycolylneuraminic Acid as a Receptor for Influenza A Viruses journal June 2019
Structural basis for substrate specificity and catalysis of α1,6-fucosyltransferase journal February 2020
An automated platform for the enzyme-mediated assembly of complex oligosaccharides journal February 2019
Structural and functional role of disulphide bonds and substrate binding residues of the human beta-galactoside alpha-2,3-sialyltransferase 1 (hST3Gal1) journal November 2019
Critical Review of Plant Cell Wall Matrix Polysaccharide Glycosyltransferase Activities Verified by Heterologous Protein Expression journal July 2019
Novel Zebrafish Mono-α2,8-sialyltransferase (ST8Sia VIII): An Evolutionary Perspective of α2,8-Sialylation journal January 2019
Additional file 2 of The O-glycosylating enzyme GALNT2 acts as an oncogenic driver in non-small cell lung cancer dataset January 2022
Additional file 3 of The O-glycosylating enzyme GALNT2 acts as an oncogenic driver in non-small cell lung cancer dataset January 2022
Engineering of CHO cells for the production of vertebrate recombinant sialyltransferases journal January 2019
Toward Automated Enzymatic Glycan Synthesis in a Compartmented Flow Microreactor System journal August 2019
An Enzymatic N‐Acylation Step Enables the Biocatalytic Synthesis of Unnatural Sialosides journal February 2020
An Enzymatic N‐Acylation Step Enables the Biocatalytic Synthesis of Unnatural Sialosides journal March 2020
Cell-based glycan arrays for probing glycan–glycan binding protein interactions journal February 2018
Streamlining the chemoenzymatic synthesis of complex N-glycans by a stop and go strategy journal December 2018
Legionella effector SetA as a general O-glucosyltransferase for eukaryotic proteins journal January 2019
Emerging structural insights into glycosyltransferase-mediated synthesis of glycans journal August 2019
Reprogramming the enzymatic assembly line for site-specific fucosylation journal May 2019
Carbohydrates@MOFs journal January 2019
Chemoenzymatic synthesis of the oligosaccharide moiety of the tumor-associated antigen disialosyl globopentaosylceramide journal January 2019
Human N -acetylglucosaminyltransferase II substrate recognition uses a modular architecture that includes a convergent exosite journal April 2018
A two-phase model for the non-processive biosynthesis of homogalacturonan polysaccharides by the GAUT1:GAUT7 complex journal October 2018
A validated collection of mouse monoclonal antibodies to human glycosyltransferases functioning in mucin-type O-glycosylation journal June 2019
Analytical Techniques for Determining the Role of Domain of Unknown Function 579 Proteins in the Synthesis of O -Methylated Plant Polysaccharides journal March 2020
Toward Automated Enzymatic Glycan Synthesis in a Compartmented Flow Microreactor System text January 2019
Glycosylation Flux Analysis of Immunoglobulin G in Chinese Hamster Ovary Perfusion Cell Culture journal October 2018
Glycosylation Flux Analysis of Immunoglobulin G in Chinese Hamster Ovary Perfusion Cell Culture text January 2018
Toward Automated Enzymatic Glycan Synthesis in a Compartmented Flow Microreactor System text January 2019

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