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[ÇóÖú] ÐèÒªGlcNAc- P-Man

ÐèÒª[3H]GlcNAc- P-Man£¬ÖÐÎÄÃû: N-ÒÒõ£ÆÏÌǰ·-Á×Ëá-¸Ê¶ÌÇ£¨ë°Í¬Î»Ëرê¼ÇµÄ£©¡£Äĸö¹«Ë¾»òÕßÊÇʵÑé»ú¹¹ÓÐÂôµÄ»òÕßÓÐÌõ¼þºÏ³ÉµÄºó³öÊ۵ġ£
ÎÄÏ×ÉÏÓкϳɵIJ½ÖèÈçÏ£ºSynthesis of [3H]GlcNAc-P-ManaMe. The reaction buffer was prepared by sequential addition of 1 M Tris-HCl, pH 7.4 (250¦Ìl), fresh 25 mM dithiothreitol(50 ¦Ìl),500 mM GlcNAc (500 ¦ÌI), 100 mg/ml BSA (100¦ÌI), 500mM sodium molybdate (100¦ÌI), 3% (v/ v) Lubrol-PX(500 ¦Ìl), 1 M MgCl (50 ¦Ìl), and 1 M MnCl, (50¦Ìl) and 1M Man¦ÁMe (1400 ¦Ìl) to a 15-ml Pyrex tube. UDP-Nacetyl-[3H]glucosamine was placed in a 1.5-ml polypropylenetube and the solvent removed under vacuum by centrifuge evaporation. The UDP-N-acetyl-[3H]glucosamine was resuspended in 250 ¦Ìlof 100 mM ATP plus 75¦Ìl of 100 mM UDP-GlcNAc and GlcNAc-phosphotransferase added to the reaction buffer. The reaction was carried out for 36 h at roomtemperature.
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