ASIA unversity:Item 310904400/16128
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 90570/105786 (86%)
造访人次 : 16405518      在线人数 : 188
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://asiair.asia.edu.tw/ir/handle/310904400/16128


    题名: Production of bioactive human alpha-defensin 5 in Pichia pastoris
    作者: 葉貞吟;Yeh, Jan-Ying
    贡献者: 生物科技學系
    日期: 2009
    上传时间: 2012-11-23 17:08:54 (UTC+8)
    摘要: Human alpha-defensin 5 (HD5), a small cationic peptide, is expressed in Paneth cell granules of small intestinal crypts. HD5 exhibits high antimicrobial activity against a broad spectrum of pathogenic agents, including bacteria, fungi, and viruses. In this study, the constitutive expression of HD5 antimicrobial peptide was achieved using the methylotrophic yeast, Pichia pastoris (P. pastoris). HD5 cDNA was amplified by polymerase chain reaction (PCR) using human lung cell cDNA as template. The 96-bp DNA fragment encoding mature HD5 peptide (amino acid 63-94) was subcloned into the yeast expression vector and transfected into P. pastoris X-33 expression host by electroporation. The recombinant HD5 (rHD5) was detected in the supernatant of transfected yeast by western blot analysis. The recombinant HD5 crude extract from transfected P. pastoris showed antimicrobial activities against Salmonella typhimurium, Staphylococcus aureus and pathogenic E. coli. However, rHD5 did not inhibit the growth of lactic acid bacteria such as Lactobacillus bulgaricus, Bifidobacterium bifidum, or B. longum. These results indicated that the rHD5 expressed in P. pastoris selectively inhibited the growth of specific bacteria.
    關聯: JOURNAL OF GENERAL AND APPLIED MICROBIOLOGY;55(5):395-401.
    显示于类别:[生物科技學系] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML171检视/开启


    在ASIAIR中所有的数据项都受到原著作权保护.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈