| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 鸟苷 5'-磷酰-2-甲基咪唑 | guanosine-5'-(2-methylimidazol-1-yl phosphate) | 80242-42-8 | C14H18N7O7P | 427.313 |
| 鸟苷酸 | 5'-guanosine monophosphate | 85-32-5 | C10H14N5O8P | 363.224 |
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | (2S)-2-propylpentyl 2-(((((((2R,3S,4R,5R)-5-(2-amino-6-oxo-1H-purin-9(6H)-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(hydroxy)phosphoryl)oxy)(2-(2-chloroacetamido)ethoxy)phosphoryl)amino)propanoate | 1536470-98-0 | C25H42ClN7O13P2 | 746.048 |
| 5`-二磷酸鸟嘌呤核苷-岩藻糖二钠盐 | guanosine-5'-diphospho-β-L-fucose | 15839-70-0 | C16H25N5O15P2 | 589.347 |
| —— | 6-azide-6-deoxy-β-L-galactopyranos-1-yl-guanosine 5'-diphosphate | 912921-33-6 | C16H24N8O15P2 | 630.359 |
| —— | 6-deoxy-6-N-(2-naphthalen-2-yl-acetamide)-β-L-galactopyranos-1-yl-guanosine 5'-diphosphate | 1032815-60-3 | C28H34N6O16P2 | 772.556 |
| [5-(2-氨基-6-氧代-3,6-二氢-9H-嘌呤-9-基)-3,4-二羟基四氢-2-呋喃基]甲基 3,4,5-三羟基-6-(羟基甲基)四氢-2H-吡喃-2-基二氢二磷酸酯 | GDP-L-galactose | 6815-91-4 | C16H25N5O16P2 | 605.346 |
Chemical syntheses are reported for GDP-fucose (5), GDP-3-deoxy-fucose (6), and GDP-arabinose (7), the demethyl analog of 5. All three sugar nucleotides were found to act as donor substrates for an α(1 → 4) fucosyltransferase isolated from human milk when *BDGal(1 → 3)*BDGlcNAc-O(CH2)8COOMe (1) was used as the acceptor. The rate of transfer of sugar residues to 1 was measured using a coupled spectrophotometric assay and was found to be 100% (5), 2.3% (6), and 5.9% (7). The product Lea-active oligosaccharide analogs were identified by both an enzyme-linked immunosorbent assay (ELISA) and by 1H NMR spectroscopy. Keywords: glycosyltransferase, oligosaccharide synthesis, sugar-nucleotide analog, ELISA assay, fucosyltransferase.