| 植物抗冻蛋白及其高级结构研究进展 |
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| 引用本文： | 张党权,谭晓风,乌云塔娜,王金发. 植物抗冻蛋白及其高级结构研究进展[J]. 中南林业科技大学学报(自然科学版), 2005, 25(4): 110-114 |
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| 作者姓名： | 张党权 谭晓风 乌云塔娜 王金发 |
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| 作者单位： | 中南林学院经济林育种与栽培国家林业局重点实验室 湖南长沙410004(张党权,谭晓风,乌云塔娜),中山大学生命科学学院教育部基因工程重点实验室 广东广州510275(王金发) |
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| 基金项目： | 中南林学院校科研和教改项目 |
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| 摘 要： | 抗冻蛋白是一类能控制冰晶生长和抑制冰晶之间发生重结晶的蛋白质,并具有两种明显不同的活性--热滞活性和重结晶抑制活性.植物抗冻蛋白的抗冻特性是低热滞活性和高重结晶抑制活性.植物抗冻蛋白虽然在DNA和氨基酸水平上具有较大的差异,几乎没有同源性,但却拥有相似的高级结构,冰晶结合位点也有一定的相似性,而且都可以通过"表面互补"模型较好地解释它们与冰晶之间的相互作用.全面介绍了植物抗冻蛋白的种类及特性,以及它们的高级结构和冰晶结合位点.
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| 关 键 词： | 植物抗冻蛋白 高级结构 冰晶结合位点 热滞 重结晶抑制 表面互补 |
| 文章编号： | 1000-2502(2005)04-0110-05 |
| 修稿时间： | 2005-04-20 |
Research Progress of Plant Antifreeze Proteinsand Their Advanced Structures |
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| ZHANG Dang-quan,TAN Xiao-feng,WUYUN Ta-na,WANG Jin-fa. Research Progress of Plant Antifreeze Proteinsand Their Advanced Structures[J]. , 2005, 25(4): 110-114 |
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| Authors: | ZHANG Dang-quan TAN Xiao-feng WUYUN Ta-na WANG Jin-fa |
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| Abstract: | Antifreeze proteins (AFPs) are a family of proteins capable of controlling the growth of ice and inhibiting the recrystallization between ice granules and possess two distinct antifreeze activities which are termed thermal hysteresis (TH) activity and recrystallization inhibition (RI) activity respectively. The characteristics of antifreeze activities of plant AFPs are the low TH activity and high RI activity. Though there is a distinct difference in DNA and amino acids with almost no homology, plant AFPs display similar advanced structures and ice-binding sites. Moreover, the interaction between ice and all plant AFPs can be explained well by the model "Surface Complementarity". In this paper, the species and characteristics, advanced structures, and ice-binding sites of plant AFPs being researched at present were completely discussed. |
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| Keywords: | plant antifreeze protein advanced structures ice-binding site thermal hysteresis recrystallization inhibition surface complementarity |
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