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重组人血管内皮生长因子(hVEGF121)工程菌的发酵及表达产物的分离纯化
引用本文:周红霞,周梅仙,廖忠平,吴洁,胡卓逸,刘景晶. 重组人血管内皮生长因子(hVEGF121)工程菌的发酵及表达产物的分离纯化[J]. 药物生物技术, 2006, 13(1): 9-13
作者姓名:周红霞  周梅仙  廖忠平  吴洁  胡卓逸  刘景晶
作者单位:1. 中国药科大学生命科学与技术学院微基因药物实验室,江苏,南京,210009;南京晓庄学院生命科学系,江苏,南京,210017
2. 南京晓庄学院生命科学系,江苏,南京,210017
3. 中国药科大学生命科学与技术学院微基因药物实验室,江苏,南京,210009
摘    要:该研究优化了重组人血管内皮生长因子hVEGF121工程菌的发酵条件,考察乳糖诱导浓度和时间对目的蛋白表达量的影响。经乳糖诱导,目的蛋白以包涵体形式存在。通过菌体裂解、包涵体洗涤、裂解等初步纯化后,再经过DEAECellulose离子交换柱纯化和复性,经SDS-PAGE分析显示得到电泳纯的hVEGF121。

关 键 词:血管内皮生长因子  表达  纯化  包涵体
文章编号:1005-8915(2006)01-0009-05
收稿时间:2005-07-11
修稿时间:2005-07-112005-10-25

Isolation and Purification of Recombinant Human Vascular Endothelial Growth Factor (hVEGF) Expressed in E.coli
ZHOU Hong-xia,ZHOU Mei-xian,LIAO Zhong-ping,WU Jie,HU Zhuo-yi,LIU Jing-jing. Isolation and Purification of Recombinant Human Vascular Endothelial Growth Factor (hVEGF) Expressed in E.coli[J]. Pharmaceutical Biotechnology, 2006, 13(1): 9-13
Authors:ZHOU Hong-xia  ZHOU Mei-xian  LIAO Zhong-ping  WU Jie  HU Zhuo-yi  LIU Jing-jing
Affiliation:1. Department of Bioengineering, China Pharmaceutical University, Nanjing 210019, China; 2. Department of Biology, Nanjing Xiaozhuang College, Nanjing, 210017, China
Abstract:The expression condition of recombinant human vascular endothelial growth factor 121 in E. coli expression system is optimized in this paper. After being induced by 2% lactose for 6h, recombinant protein was expressed. Results showed that gene highly expressed its product in inclusion body. By denaturation, purification with DEAE-cellulose chromatography and renaturation, the inclusion body was purified. The purity of product was above 90% analyzed by SDS-PAGE. It can be concluded that the recombinant human VEGF121 was expressed and purified successfully.
Keywords:VEGF   Expression   Purification   Inclusion Body
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