...
首页> 外文期刊>Protein Expression and Purification >The molecular design of a recombinant antimicrobial peptide CP and its in vitro activity
【24h】

The molecular design of a recombinant antimicrobial peptide CP and its in vitro activity

机译:重组抗菌肽CP的分子设计及其体外活性

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

Antibacterial peptides from various sources express different antibacterial activity. In order to obtain a high activity antibacterial peptide, the sequences of four antimicrobial peptides-Protegrin-1, 4 kDa Scorpion Defensin, Metalnikowin-2A and Sheep Myeloid Antibacterial Peptide SMAP-29-were exploited to generate a synthetic antimicrobial peptide cp gene, which was then cloned into the expression vector pPICZ alpha-A. The constructed recombinant expression vector pPICZ alpha-cp was transformed into Pichia pastoris X-33, in which the synthetic antimicrobial peptide (CP) could be expressed under the control of the inducible AOX1 promoter and secreted via the a mating factor leader of Saccharomyces cerevisiae. Results showed that recombinant plasmid is highly stable, and In vitro experiments showed that the recombinant antimicrobial peptide CP is heat and acid-stable, and it has high antibacterial activity against several Gram-positive and -negative bacteria. Only 1 mu g of the recombinant antimicrobial peptide CP has an antibacterial activity equivalent to 64 U ampicillin. Thus, this recombinant antimicrobial peptide could serve as an attractive candidate for the development of therapeutic antimicrobial drugs. (c) 2007 Published by Elsevier Inc.
机译:来自各种来源的抗菌肽表达不同的抗菌活性。为了获得高活性的抗菌肽,利用四种抗菌肽Protegrin-1、4 kDa蝎防御素,Metalnikowin-2A和绵羊髓样抗菌肽SMAP-29的序列来生成合成的抗菌肽cp基因,然后将其克隆到表达载体pPICZ alpha-A中。将构建的重组表达载体pPICZ alpha-cp转化到巴斯德毕赤酵母X-33中,其中合成的抗菌肽(CP)可以在诱导型AOX1启动子的控制下表达,并通过酿酒酵母的交配因子前导体分泌。结果表明重组质粒是高度稳定的,体外实验表明该重组抗菌肽CP具有良好的热稳定性和耐酸性,对几种革兰氏阳性和阴性细菌均具有很高的抗菌活性。仅1μg的重组抗微生物肽CP具有相当于64U氨苄青霉素的抗菌活性。因此,该重组抗微生物肽可以作为治疗性抗微生物药物的开发的有吸引力的候选者。 (c)2007年由Elsevier Inc.发布。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号