华北农学报 ›› 2011, Vol. 26 ›› Issue (6): 201-206. doi: 10.7668/hbnxb.2011.06.038

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枯草芽孢杆菌BSD-2一种抗菌肽的分离纯化与鉴定

胡瑞萍1,2,4, 张铎3, 张丽萍1,4, 张根伟1,4, 张蕾1,4, 赵宝华2   

  1. 1. 河北省科学院生物研究所, 河北石家庄 050081;
    2. 河北师范大学生命科学学院, 河北石家庄 050016;
    3. 河北化工医药职业技术学院, 河北石家庄 050062;
    4. 河北省主要农作物病害微生物控制工程技术研究中心, 河北石家庄 050081
  • 收稿日期:2011-06-15 出版日期:2011-12-28
  • 通讯作者: 张丽萍(1969-)女,河北沽源人,研究员,硕士,主要从事农业微生物学研究;赵宝华(1967-),男,河北衡水人,教授,博士,主要从事兽医微生物学研究。
  • 作者简介:胡瑞萍(1982-),女,河北邯郸人,硕士,主要从事应用微生物学研究。
  • 基金资助:
    河北省自然科学基金项目(C2009001280);河北省科学院重大攻关项目(11310)

Purification and Identification of an Antimicrobial Peptides from Bacillus subtilisBSD-2

HU Rui-ping1,2,4, ZHANG Duo3, ZHANG Li-ping1,4, ZHANG Gen-wei1,4, ZHANG Lei1,4, ZHAO Bao-hua2   

  1. 1. Institute of Biology of Hebei Academy of Sciences, Shijiazhuang 050081, China;
    2. College of Life Sciences of Hebei Nomal University, Shijiazhuang 050016, China;
    3. Hebei Chemical and Pharmaceutical College, Shijiazhuang 050026, China;
    4. The Microbial Control Enginearing Technology Ressearch Center of Main Crops Diseases in Hebei Province, Shijiazhuang 050081, China
  • Received:2011-06-15 Published:2011-12-28

摘要: 为了分离纯化及鉴定枯草芽孢杆菌BSD-2代谢产物中抗菌肽,采用盐酸沉淀、Sephadex G-50层析以及反相HPLC对其进行分离纯化,并利用Tricine-SDS-PAGE、MAIDL-TOF-MS、红外光谱和核磁共振技术对其分子量、氨基酸序列以及结构进行初步解析。结果显示该抗菌肽是由29个氨基酸组成,分子量为3 514 Da,等电点为10.46。红外光谱和核磁共振分析其结构中含有-CH2-、-CH3、-OH、-NH2、-CH、-CO-以及苯环等官能团。

关键词: 枯草芽孢杆菌, 抗菌肽, 生物自显影, 红外光谱, 核磁共振

Abstract: In order to purify and identify an Antimicrobial peptides from the metabolic products of the Bacillus subtilis BSD-2. It was purified by Hydrochloric acid precipitation,Sephadex G-50 Chromatography and RT-HPLC. And the molecular weight was determined by Tricine-SDS-PAGE and Bioautography. The amino acid sequence and structure were preliminary analysised by MAIDL-TOF-MS, Infrared spectrum and nuclear magnetic resonance. The result indicated that the antimicrobial substance was composed of 29 amino acids. The molecular weight and PI were 3 514 Da and 10. 46 respectively. The structure contained a lot of functional groups by infrared spectrum and NMR, such as-CH2-,-CH3 ,-OH,-NH2 ,-CH,-CO-and so on.

Key words: Bacillus subtilis, Antibiotic peptide, Bioautography, Infrared spectrum, NMR

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引用本文

胡瑞萍, 张铎, 张丽萍, 张根伟, 张蕾, 赵宝华. 枯草芽孢杆菌BSD-2一种抗菌肽的分离纯化与鉴定[J]. 华北农学报, 2011, 26(6): 201-206. doi: 10.7668/hbnxb.2011.06.038.

HU Rui-ping, ZHANG Duo, ZHANG Li-ping, ZHANG Gen-wei, ZHANG Lei, ZHAO Bao-hua. Purification and Identification of an Antimicrobial Peptides from Bacillus subtilisBSD-2[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(6): 201-206. doi: 10.7668/hbnxb.2011.06.038.

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