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  • Title: Enzymatic deglycosylation of glycoproteins.
    Author: Kim MS, Leahy D.
    Journal: Methods Enzymol; 2013; 533():259-63. PubMed ID: 24182931.
    Abstract:
    Recombinant protein expression using eukaryotic expression systems has certain advantages, such as addition of posttranslational modifications that help protein stability and activity. Asparagine-linked sugar attachment is one of the most common posttranslation modifications. However, sugar modification can impede the growth of high-quality protein crystals for structural studies using X-ray crystallography. To overcome this problem, consensus sites of N-linked attachments can be mutated into other similar residues, such as aspartic acid. Alternatively, enzymatic deglycosylation can be used to remove sugars. Peptide-N-Glycosidase F (PNGase F; EC 3.5.1.52) and Endoglycosidase H (Endo H; EC 3.2.1.96) are the most popular enzymes for this purpose.
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