| 趋磁螺菌中磁小体链装配相关基因及其功能 |
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| 引用本文： | 解春兰,郑平,潘卫东.趋磁螺菌中磁小体链装配相关基因及其功能[J].中国生物化学与分子生物学报,2011,27(7):610-615. |
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| 作者姓名： | 解春兰 郑平 潘卫东 |
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| 作者单位： | 中国科学院电工研究所电磁生物工程研究组;中国科学院研究生院;兰州城市学院数学学院; |
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| 基金项目： | 国家自然科学基金项目(No.30670508,No.31070755)~~ |
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| 摘 要： | 趋磁细菌(MTB)依赖于体内磁小体结构在磁场中取向，多个磁小体以一定的组 织形式排列是形成菌体内生物磁罗盘的重要环节．多数趋磁细菌中磁小体成链排列，有效增加了细胞磁偶极矩，从而使菌体表现出在环境磁场中定向的能力．趋磁螺菌M. magneticum AMB－1和M. gryphiswaldense MSR－1中磁小体均沿细胞长轴形成一条磁 小体链．通过对相关基因突变体表型的研究，结合对磁小体链形成过程的实时动态观 察，人们已初步了解MamJ、MamK和MamA等基因在磁小体链装配和维护过程中的功能．本文介绍了近年来趋磁螺菌磁小体链装配过程中重要功能性基因的研究进展，并重点分析了AMB-1和MSR-1中磁小体链装配的差异．
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| 关 键 词： | 趋磁螺菌AMB-1和MSR-1 磁小体链 MamJ MamK MamA |
| 收稿时间： | 2011-03-24 |
Important Functional Genes for Magnetosome Chain Assembly in Magnetotactic Spirillum |
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| XIE Chun-Lan,ZHENG Ping ,PAN Wei-DongBioelectromagnetic Laboratory.Important Functional Genes for Magnetosome Chain Assembly in Magnetotactic Spirillum[J].Chinese Journal of Biochemistry and Molecular Biology,2011,27(7):610-615. |
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| Authors: | XIE Chun-Lan ZHENG Ping PAN Wei-DongBioelectromagnetic Laboratory |
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| Institution: | XIE Chun-Lan1),2),ZHENG Ping 3),PAN Wei-Dong1)(1)Bioelectromagnetic Laboratory,Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China,2)Graduate University of Chinese Academy of Sciences,Beijing 100049,3)School of Mathematics,Lanzhou City University,Lanzhou 730070,China) |
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| Abstract: | Magnetotactic bacteria(MTB) rely on magnetosomes for their orientation and navigation in geomagnetic field.It is important for MTB to organize magnetosomes to form their biomagnetic compass.The magnetosomes are arranged effectively in chains in most MTB species,thus to increase the magnetic dipole moment of cells and enable the bacteria to orientate in environmental magnetic field.M.magneticum AMB-1 and M.gryphiswaldense MSR-1 are both known to form a single-chain magnetosomes along the cell's long axes.Rec... |
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| Keywords: | magnetotactic spirillum AMB-1 & MSR-1 magnetosome chain MamJ MamK MamA |
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