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首页> 外文期刊>Comparative and functional genomics >The Evolution of Light Stress Proteins in Photosynthetic Organisms
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The Evolution of Light Stress Proteins in Photosynthetic Organisms

机译：光合生物中光胁迫蛋白的进化

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摘要

The Elip (early light-inducible protein) family in pro- and eukaryotic photosynthetic organisms consists of more than 100 different stress proteins. These proteinsaccumulate in photosynthetic membranes in response to light stress and havephotoprotective functions. At the amino acid level, members of the Elip family areclosely related to light-harvesting chlorophylla/b-binding (Cab) antenna proteinsof photosystem I and II, present in higher plants and some algae. Based on theirpredicted secondary structure, members of the Elip family are divided into threegroups: (a) one-helix Hlips (high light-induced proteins), also called Scps (smallCab-like proteins) or Ohps (one-helix proteins); (b) two-helix Seps (stress-enhancedproteins); and (c) three-helix Elips and related proteins. Despite having differentphysiological functions it is believed that eukaryotic three-helix Cab proteins evolvedfrom the prokaryotic Hlips through a series of duplications and fusions. In thisreview we analyse the occurrence of Elip family members in various photosyntheticprokaryotic and eukaryotic organisms and discuss their evolutionary relationshipwith Cab proteins.
机译：前和真核生物光合生物中的Elip（早期光诱导蛋白）家族由100多种不同的应激蛋白组成。这些蛋白质响应于光胁迫而在光合膜中积累并具有光保护功能。在氨基酸水平上，Elip家族成员与高等植物和某些藻类中光系统I和II的光收集叶绿素/ b结合（Cab）触角蛋白密切相关。根据其预测的二级结构，Elip家族的成员可分为三类：（a）一螺旋Hlips（高光诱导蛋白），也称为Scps（smallCab样蛋白）或Ohps（一螺旋蛋白）; （b）两螺旋Seps（应力增强蛋白）; （c）三螺旋Elips和相关蛋白质。尽管具有不同的生理功能，但相信真核三螺旋Cab蛋白是通过一系列重复和融合从原核Hlips进化而来的。在这篇综述中，我们分析了Elip家族成员在各种光合原核生物和真核生物中的发生，并讨论了它们与Cab蛋白的进化关系。

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