讨论了O 抗原糖基转移酶和聚合酶对底物的特异性；
The substrate specificity of O-antigen glycosyltransferases and polymerases are proposed.
不同蛋白质修饰剂对环糊精葡萄糖基转移酶进行修饰。
The effects of some protein modification reagents on the activity of cyclodextrin glucanotransferase (CGTase) have been studied.
糖基转移酶（GT）催化许多生物大分子的糖基化反应。
Glycosyltransferases (GTs) catalyze the reaction of glycosylation of various cellular macromolecules.
对一株嗜碱芽孢杆菌产环糊精糖基转移酶的发酵条件进行了研究。
The fermentation conditions of cyclodextrin glycosyltransferase (CGTase) produced by Bacillus alkalophilus12-7 were studied.
它是通过糖基转移酶催化完成的，其中糖核苷酸是糖基化过程中糖的供体。
Sugar nucleotides are sugar donors to aglycone in glycosylation, which is catalyzed by glycosyltransferases.
笔者下面就果糖基转移酶的分子结构、反应机制和编码基因及其调节作一综述。
The article reviewed the molecular structure, reaction mechanism, coding gene and regulation mechanism of fructosyltransferase.
果糖基转移酶是口腔细菌细胞外多糖合成酶之一，它以蔗糖为底物催化合成果聚糖。
Fructosyltransferase is a kind of enzyme, which catalyzes the synthesis of fructan when sucrose is present at environment.
结论：成功克隆葡糖基转移酶CAT基因并获得其融合蛋白的表达，为后续研究奠定了基础。
Conclusion: the target gene and its fusion protein was successfully expressed, which provide a base for the further research.
另外，表面半乳糖基转移酶通过调节表皮生长因子受体信号传导能力向胞内传递生长抑制信号，在细胞增殖控制中起重要作用。
Surface GalTase also delivers a growth inhibitory signal by modulating the ability of the EGF receptor to transduce EGF dependent signals, and plays an important role during cell growth.
另外，表面半乳糖基转移酶通过调节表皮生长因子受体信号传导能力向胞内传递生长抑制信号，在细胞增殖控制中起重要作用。
Surface GalTase also delivers a growth inhibitory signal by modulating the ability of the EGF receptor to transduce EGF dependent signals, and plays an important role during cell growth.
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