| 1. | N linked glycan processing glucosidases and mannosidasesn
连接聚糖链加工中的葡萄糖苷酶和甘露糖苷酶 |
| 2. | Ricin is a heterodimeric rip comprised of a and b chains joined through a disulfide bond
A链( rta )是活性链，分子量约32kd ，第十位残基asn连接一条寡糖链。 |
| 3. | Gnt - v was reported to overexpress in many malignant tumors , and the increase of its product - 1 , 6 branching is a characteristic of cancer progress and metastasis potential
Gnt - v在很多恶性肿瘤中部有过量表达，其产物复杂型n -糖链1 ， 6glcnac分支的增多可能是肿瘤发展和转移潜能的重要特征。 |
| 4. | Are the changes in signal transduction and gene expression related to the structural alteration of the sugar chain on some surface receptors resulting from the transfection with sense or antisense gnt - v
而细胞信号转导的改变是否与细胞表面某些受体的糖链结构的改变(由gnt - v的正义或反义cdna转染引起的)有关 |
| 5. | The complex of glycan structure is synthesized by glycosyltransferases and the differential expression of glycans during development is due to the developmental expression and activity of glycosyltransferases
复杂的糖链结构是由糖基转移酶依此加工合成的，糖基转移酶在发育过程中的表达水平及生物活性决定了某一特定糖链在发育中的表达变化。 |
| 6. | Abstract : this paper describes the role of the sialylsugar chains on cell surface in the attacking process of the influenza virus , and also binding specificity of hemagglutinin of the influenza virus to the sialylsugar chains
文摘:介绍了细胞外表面上含唾液酸的糖链在流感病毒侵袭细胞中的作用以及糖链与流感病毒表面糖蛋白-血凝素结合的特异性。 |
| 7. | For chitosan , when the concentration of chitosan is under 0 . 1mg / ml , the structure of molecular chain can be observed by afm . at the same time , the refined structure of lyotropic liquid crystal of chitosan and the changes of structure were studied . films with liquid crystalline texture can be prepared from diluted solutions which concentration is lower than critical concentration of liquid crystal
对于壳聚糖( chitosan ) ，通过afm直接对壳聚糖进行分子结构水平的观察研究，发现在浓度低于0 . 1mg ml的稀溶液中用afm可以清楚观察到糖链间形成的环状或螺旋结构，以及链内侧枝绕合排列的树枝状结构，这种现象是由于糖链间和糖链内的氢键缔合所致。 |
| 8. | According to the result showed at 280nm and at 490nm , in the comparison of whether protein absorption top and sugar quantity top overlapped , glycoproteins would be detected preparatorily , and as a result , tubes in two distinct areas had glycoproteins by this method . proteins were precipitated with trichloroaceticacid and with cold acetone , and glycoprotein was determined from sds - gel
再从各收集管的收集液中，用三氯乙酸沉淀蛋白法、冷丙酮沉淀蛋白法相结合浓缩、制备蛋白样品，进行sds ? page ，对sds胶进行pas糖链染色鉴定糖蛋白，并从茶树叶分级蛋白中准确地鉴定出两个区域的收集管中含有多种糖蛋白。 |
| 9. | Therefore , the structural modification of n - glycan and the functional changes of egf receptor ( egfr ) in different transfected cells were investigated . it was found that the 1 , 6 glcnac branch on the n - glycans of immuno - precipitated egfr on gntv - s / h7721 cells was increased while it was reduced in gntv - as / h7721 cell despite the unaltered expression of egfr protein
因此本文对不同转染细胞egf受体( egfr )的糖链结构及功能的改变作进一步研究，结果发现，不同转染细胞中，免疫沉淀egfr的蛋白量没有改变，但gntv - s h7721细胞egfr上n -糖链中1 ， 6glcnac分支比mock细胞增多，而gntv - as h7721细胞相反。 |
| 10. | Objective : polypeptide : n - acetylgalactosaminyl transferase is the initiation enzyme catalyzing the linkage of o - glucan chain . recent study shows that o - glucosylation is closely related to molecular recognition , tumor formation , development and metastasis , as well as embryonic development . due to the initial study on function of o - glucosylation in china , this thesis aims to obtain stably expressed pp - galnac - t2 gene clones for further study
目的多肽： n乙酰氨基半乳糖转移酶是合成o糖链的起始酶，而目前的研究认为， o -糖基化与分子及细胞识别、肿瘤的发生发展和转移以及胚胎发育等功能密切相关。 |
