J4 ›› 2012, Vol. 38 ›› Issue (3): 590-594.

• 技术交流 • 上一篇    下一篇

真菌胞内蛋白质提取方法的建立

王 爽1,2|姜兰香1|张 宇2,3| 贺 丹2|田 庄2|高 嵩2| 横山耕治4| 王 丽2   

  1. 1.吉林大学第二医院皮肤科|吉林 长春 130041; 2.吉林大学白求恩医学院病原生物学系|吉林 长春 130021;3.吉林大学第二医院检验科|吉林 长春 130041;4.日本千叶大学真菌研究中心,日本 千叶 260-8673
  • 收稿日期:2011-08-15 出版日期:2012-05-28 发布日期:2012-05-28
  • 通讯作者: 王 丽(Tel: 0431-85619486,E-mail: wli99@jlu.edu.cn) E-mail:E-mail: wli99@jlu.edu.cn
  • 作者简介:王 爽(1976-)|女|吉林省长春市人|主治医师|医学博士|主要从事真菌分子学鉴定及耐药机制的研究。
  • 基金资助:

     国家自然科学基金资助课题(30910103903,30770120)

Establishment of intracellular protein extraction methods from fungus

WANG Shuang 1,2,JING Lan-xiang1|ZHANG Yu 2,3,HE Dan 2,TIAN Zhuang 2,GAO Song 2,KOJI Yokoyama 4, WANG Li 2   

  1. 1.Department of Dermatology,Second Hospital,Jilin University,Changchun 130041,China;2.Department of Pathogen Biology,Norman Bethune College of Medicine,Jilin University,Changchun 130021,China;3.Department of |Laboratory,Second Hospital,Jilin University,Changchun 130041,China;4.Medical Mycology Research Center,Chiber University,Chiba 260-8673,Japan
  • Received:2011-08-15 Online:2012-05-28 Published:2012-05-28

摘要:

目的:研究不同的提取方法对白假丝酵母和茄病镰刀菌胞内蛋白质浓度、种类及数量的影响,为建立一种稳定可靠的真菌胞内蛋白质提取方法提供依据。方法:分别以白假丝酵母菌和茄病镰刀菌为研究对象,培养时间为36、48和72 h,超声波工作时间为20 s、3 min、5 min,10 min,超声波功率为332.5和475.0 W,通过蛋白质浓度检测和SDS-PAGE蛋白质电泳分析,比较不同条件下提取的蛋白质浓度、种类及数量,观察不同因素对蛋白质提取效果的影响。结果:2株真菌均在培养36 h时提取胞内蛋白质的浓度最大,白假丝酵母在功率332.5 W、超声3 min时得到胞内蛋白质的数量和种类最多,茄病镰刀菌在功率332.5 W、超声10 min时得到蛋白质的数量和种类最多。结论:使用超声波法与玻璃珠研磨法结合提取胞内蛋白质,从菌株的培养时间、超声波工作时间和功率3方面建立了真菌胞内蛋白质的最佳提取方法。

关键词: 白假丝酵母;茄病镰刀菌;超声波;培养时间

Abstract:

Objective
 To study the effect of different cultivate time,ultrasonic time and ultrasonic power on the concentration,type and quantity of the  intracellular protein from Candida albicans and Fusarium solina and to provide the theoretical basis for establishing a reliable and stable extraction method for intracellular protein from fungus.Methods Candida albicans and Fusarium solina were cultured.The different parameters included the culture time(36,48,and 72 h),ultrasonic time(20 s,3 min,5 min,and 10 min) and ultrasonic power(332.5 W and 475.0 W).The concentrations,species and quantities of protein under different factors were detected by the protein concentration detection and SDS-PAGE electrophoresis analysis.Results Both strains got the most quantity of protein when cultivated for 36 h.The most quantity and species of Candida albicans were obtained when the ultrasonic power was 332.5 W and ultrasonic time was 3 min,but as to Fusarium solina,the corresponding parameters were 332.5 W and 10 min, respectively.Conclusion The intracellular protein is extracted by compositely using ultrasonic method and glass bead transformation method.The optimal extraction method of intracellular protein from fungus is developed from the aspects of culture time,ultrasonic power and ultrasonic working time of strains.

Key words: Candida albicans;Fusarium solani;ultrasound;culture time

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