The Mass Spectrometry society of Japan - The 68th Annual Conference on Mass Spectrometry, Japan

Abstract

Oral Sessions

Day 2, May 20(Thu.) 10:00-10:20 Room B (Zoom)

Glycoprotein Analyses by Mass Spectrometry

(1AIST, 2Hokkaido Univ.)
oHiroyuki Kaji1, Azusa Tomioka1, Takahiro Hiono1,2, Michihito Sasaki2, Yasuko Orba2, Hirofumi Sawa2, Atsushi Kuno1

Antigen determining blood types like ABO-type or Lewis-type is glycans attached on protein or lipid. Thus, in case of injectable medications such as vaccine, biopharmaceuticals, or viral vector, especially they were produced from non-human organisms or their cells, immunogenicity due to glycan is requested to test strictly. As an approach to analyze glycans on protein, we developed 2 methods employing mass spectrometry. One is a method for large-scale mapping of glycosylation sites, called IGOT, and another is to assign site-specific glycan compositions of a large number of proteins or in-depth for single protein, the method is named Glyco-RIDGE. In this talk, approach and applications of the methods will be presented.