| 盐藻尿苷二磷酸葡萄糖脱氢酶(DsUGD)基因的功能预测 |
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| 引用本文： | 贺顺姬,赵向丽,韩锐,孙晓菲,徐辉,曹毅,乔代蓉.盐藻尿苷二磷酸葡萄糖脱氢酶(DsUGD)基因的功能预测[J].四川大学学报(自然科学版),2006,43(3):713-716. |
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| 作者姓名： | 贺顺姬 赵向丽 韩锐 孙晓菲 徐辉 曹毅 乔代蓉 |
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| 作者单位： | 四川大学生命科学学院,四川省生物信息及代谢工程共享实验平台,成都,610065 |
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| 基金项目： | 四川省科技厅重点项目01NG018-01 |
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| 摘 要： | 盐生杜氏藻（Dunaliella salina）具有极强的耐盐性，藻体含有大量的胡萝卜素、蛋白质以及多糖类化合物．目前，已有研究报道指出蓝藻多糖是其适应高盐、高碱等环境的重要因素；而盐藻多糖的作用尚未见相关研究．尿苷二磷酸葡萄糖脱氢酶（UDP-glucose dehydrogenase，UGD，EC1．1．1．22）是多糖合成中的一个关键酶，它催化产生的UDP-葡萄糖醛酸是多糖合成中的关键前体物质．在微生物中，该酶参与到荚膜多糖的合成，是其致病性原因所在；在高等植物中，UGD参与到半纤维素的合成，与植物细胞壁形成密切相关．盐生杜氏藻是一类低等光合植物，它没有细胞壁和荚膜，因此关于UGD在该物种中的作用有待进一步研究．
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| 关 键 词： | 葡萄糖脱氢酶 二磷酸 功能预测 尿苷 盐藻 多糖类化合物 盐生杜氏藻 植物细胞壁 多糖合成 基因 |
| 文章编号： | 0490-6756（2006）03-0713-04 |
| 收稿时间： | 2005-10-15 |
| 修稿时间： | 2005-10-15 |
Sequence Analysis and Function Prediction of the Dunaliella salina UDP-glucose Dehydrogenase(DsUGD) |
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| HE Shun-ji,ZHAO Xiang-li,HAN Rui,SUN Xiao-fei,XU Hui,CAO Yi,QIAO Dai-rong.Sequence Analysis and Function Prediction of the Dunaliella salina UDP-glucose Dehydrogenase(DsUGD)[J].Journal of Sichuan University (Natural Science Edition),2006,43(3):713-716. |
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| Authors: | HE Shun-ji ZHAO Xiang-li HAN Rui SUN Xiao-fei XU Hui CAO Yi QIAO Dai-rong |
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| Institution: | College of Life Science; Sichuan University; Sichuan Public Experiment Platform of Bioinformatics and Metabolic Engineering,College of Life Science; Sichuan University; Sichuan Public Experiment Platform of Bioinformatics and Metabolic Engineering,College of Life Science; Sichuan University; Sichuan Public Experiment Platform of Bioinformatics and Metabolic Engineering,College of Life Science; Sichuan University; Sichuan Public Experiment Platform of Bioinformatics and Metabolic Engineering,College of Life Science; Sichuan University; Sichuan Public Experiment Platform of Bioinformatics and Metabolic Engineering,College of Life Science; Sichuan University; Sichuan Public Experiment Platform of Bioinformatics and Metabolic Engineering,College of Life Science; Sichuan University; Sichuan Public Experiment Platform of Bioinformatics and Metabolic Engineering |
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| Abstract: | Based on the sequence analyzing of the cloned gene Dunaliella salina UDP-glucose Dehydrogenase(DsUGD),it shows that the largest open reading frame is 1452bp,the coding protein belongs to UDP-glucose/GDP-mannose dehydrogenase family.The predicted transmembrane regions structure and signal peptides of the DsUGD show that it has one transmembrane structure and may be excretive.The results of the advanced structure analysis of DsUGD shows that it has a high identity with the previous verdict. |
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| Keywords: | Dunaliella salina UDP-glucose dehydrogenase sequence analysis molecular modeling |
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