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Dive into the research topics where Shawn DeFrees is active.

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Featured researches published by Shawn DeFrees.


Fems Microbiology Reviews | 1995

Enzymatic synthesis of oligosaccharides

Shawn DeFrees; Robert Bayer; Murray Ratcliffe

The present invention provides improved methods for the preparation of sialyl galactosides. The methods use sialyl transferase cycle in which the reaction conditions are optimized to provide increased yields.


Glycobiology | 2006

GlycoPEGylation of recombinant therapeutic proteins produced in Escherichia coli

Shawn DeFrees; Zhi-Guang Wang; Ruye Xing; Arthur E. Scott; Jin Wang; David Zopf; Dominique L. Gouty; Eric R. Sjoberg; Krishnasamy Panneerselvam; Els C. M. Brinkman-Van der Linden; Robert Bayer; Mads Agervig Tarp; Henrik Clausen


Archive | 2004

Glycopegylation methods and proteins/peptides produced by the methods

Shawn DeFrees; David Zopf; Robert J. Bayer; David James Hakes; Caryn Bowe; Chen Xi


Archive | 1996

Enzymatic synthesis of glycosidic linkages

Shawn DeFrees; Robert Bayer; Murray Ratcliffe


Archive | 2006

Glycopegylated factor IX

Shawn DeFrees; Robert J. Bayer; Caryn Bowe; Krishnasamy Panneerselvam


Archive | 2003

Factor VIII: remodeling and glycoconjugation of factor VIII

Shawn DeFrees; David Zopf; Robert J. Bayer; Caryn Bowe; David James Hakes; Chen Xi


Archive | 2003

Protein remodeling methods and proteins/peptides produced by the methods

Shawn DeFrees; David Zopf; Robert J. Bayer; David James Hakes; Chen Xi


Archive | 2007

Methods for the purification of polypeptide conjugates

Shawn DeFrees; Kyle Kinealy


Archive | 2005

O-linked glycosylation of peptides

Shawn DeFrees; David Zopf; Zhi-Guang Wang; Henrik Clausen


Archive | 2012

Branched PEG remodeling and glycosylation of glucagon-like peptide-1 [GLP-1]

Shawn DeFrees

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Robert Bayer

University of Copenhagen

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