Sample Preparation |
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Chicken ovalbumin (1mg, Sigma) reduced alkylated digested (overnight with trypsine in 25mM Ammonium Bicarbonate buffer (pH~ 8) at 37¡É.) |
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200§¡ digest Sample¿¡ PNGase F Solution(3§¡, Roche)À» ÷°¡ incubation (37¡É¿¡¼16½Ã°£µ¿¾È) |
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Peptidesµé·ÎºÎÅÍSep-Pak C18 cartridge¸¦ ÀÌ¿ëÇÏ¿© Çظ®µÈ GlycansÀ» ºÐ¸®ÇÑ´Ù. |
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Sep-Pak C18 cartridge¿¡ ·ÎµùµÇ¾î ÀÖ´Â PNGaseF-digested SampleÀ» 1% EthanolÀ» °¡Áö°í ¿ë¸®½ÃŲ´Ù. |
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Çظ®µÈ Ovalbumin Oligosaccharides¸¦ Porous Graphite Carbon Column(PhyNexus)¸¦ ÀÌ¿ëÇÏ¿© Á¤Á¦ÇÑ´Ù. |
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Permethylate ½ÃŲ´Ù. |
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Mass Spectrometry |
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¸ðµç MSn ½ÇÇèÀº Nanoelectrospray ÀÌ¿ÂÈ ¼Ò½º¸¦ °¡Áö°íDirect Infusion¹æ¹ýÀ¸·Î Thermo Scientific»çÀÇ LTQ Velos Pro Linear Ion TrapÀ» ÀÌ¿ëÇÏ¿© °á°ú¸¦ ¾ò¾ú´Ù. ÀÚ¼¼ÇÑ Áú·®ºÐ¼®±âÀÇ ÆĶó¹ÌÅÍ´Â Table 1¿¡ ±×¸®°í SimGlycan 2.92ÀÇ ¼Ä¡ ÆĶó¹ÌÅÍ´Â Table 2¿¡ ÀÚ¼¼È÷ ±â¼úÇÏ¿´´Ù. |