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High Yield Expression of Recombinant Human Proteins with the Transient Transfection of HEK293 Cells in Suspension
Published on: December 28, 2015
N-glycosylation profile of recombinant human soluble Fcgamma receptor III
Noriko Takahashi1, Joel Cohen-Solal, Annie Galinha
1Graduate School of Pharmaceutical Sciences, Nagoya City University, Mizuho-ku, Nagoya 467-8603, Japan.
Abstract:
N-glycans of human Fcgamma receptor III (FcgammaR III) are believed to be involved in the interaction with complement receptor type 3 (CR3) (Sehgal et al. [1993] J. Immunol., 150, 4571-4580). Recombinant human soluble FcgammaRIII (rhsFcgammaRIII), which is produced in baby hamster kidney (BHK) cells, has been shown to interact with CR3 in a manner similar to native FcgammaRIII. We elucidated the N-glycosylation profiles of rhsFcgammaRIII by the 3D high-performance liquid chromatography mapping technique. It was revealed that the N-glycans of rhsFcgammaRIII are much more divergent (consisting of 20 neutral, 7 monosialyl, 4 disialyl, 5 trisialyl, and 1 tetrasialyl oligosaccharides) than those previously determined for BHK-expressed mouse sFcgammaRII, notwithstanding close structural similarity of polypeptide chains between the two sFcgammaRs. Particularly, high-mannose type oligosaccharides are specifically expressed on rhsFcgammaRIII.
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