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高效絮凝菌A9在不同碳源培养条件下差异表达蛋白鉴定及分析

刘金亮1,姜彬慧1,赵鑫1,胡筱敏1*,杨程程1,李凤达2,马云峰3#br#   

  1. (1东北大学资源与土木工程学院, 沈阳 110819; 2北京桑德环境工程有限公司, 北京 101102; 3沈阳航空航天大学能源与环境学院, 沈阳 110316)
  • 出版日期:2016-11-10 发布日期:2016-11-10

Mass spectrometry identification of differential expression proteins from an efficient bioflocculant-producing strain A9 under different carbon source culture conditions.

LIU Jin-liang1, JIANG Bin-hui1, ZHAO Xin1, HU Xiao-min1*, YANG Cheng-cheng1, LI Feng-da2, MA Yun-feng3#br#   

  1. (1College of Resource and Civil Engineering, Northeastern University, Shenyang 110819, China; 2Beijing Sound Environmental Engineering Limited Company, Beijing 101102, China; 3College of Energy and Environment, Shenyang Aerospace University, Shenyang, 110316, China).
  • Online:2016-11-10 Published:2016-11-10

摘要: 研究了高效絮凝菌A9在普通培养基、葡萄糖培养基和甘露糖培养基的培养条件下蛋白质组表达的差异。从这3种不同培养基培养的菌体中提取蛋白,进行蛋白质双向电泳,胶图分析后选取差异蛋白进行质谱鉴定。胶图分析结果表明:絮凝菌A9在不同碳源培养条件下蛋白质表达有较大差异。通过质谱分析,共有54个蛋白得到成功鉴定,包括二氢硫辛酸脱氢酶、磷酸丙糖异构酶、果糖-1,6-二磷酸酶、甘油醛-3-磷酸脱氢酶、磷酸甘油酸激酶、顺乌头酸酶、磷酸酰基转移酶、肽基脯氨酸顺反异构酶、延伸因子G等。这些差异蛋白的功能主要与能量代谢、糖类合成和代谢、脂类运输和代谢、蛋白翻译后修饰以及核糖体结构和生成有关。本文从蛋白水平阐明了絮凝菌A9在不同碳源培养条件下部分蛋白表达差异,为优化菌株絮凝剂培养条件提供了依据。

关键词: 能值分析, 流域, 种植业, 黄土高原

Abstract: To study the differential proteome expression of an efficient bioflocculant-producing strain A9 cultured respectively in ordinary broth medium, dextrose medium and mannose medium, proteins were compared and analyzed by twodimensional electrophoresis (2-DE) and identified by mass spectrometry. The results showed significant differences of proteome expression among test groups cultured with different carbon sources. There were 54 differential proteins identified by mass spectrometry, including dihydrolipoyl dehydrogenase, triosephosphate isomerase, fructose-1,6-bisphosphatase, glyceraldehyde-3-phosphate dehydrogenase, phosphoglycerate kinase, aconitase, phosphate acyltransferase, peptidylprolylcistrans isomerase, elongation factor G, etc, which were mainly related to synthesis and metabolism of carbohydrates, transportation and metabolism of lipids, posttranslational modification of proteins, and structure and generation of ribosomes. The proteomic research of bioflocculant-producing strain A9 in different media would provide theoretical basis for optimizing culture conditions of strain A9.

Key words: watershed, planting system, emergy analysis, Loess Plateau.