植物酰基辅酶A结合蛋白的研究进展

doi:10.11924/j.issn.1000-6850.casb18050150

摘要/Abstract

摘要： 酰基辅酶A结合蛋白(acyl-coenzyme A-binding proteins，ACBPs)是一类脂类转运蛋白。它们对酰基辅酶A和磷脂具有高度的结合能力，在植物生长发育及胁迫响应过程中发挥重要作用。根据功能结构域和分子量大小不同，将植物ACBPs家族分为四类。随着已知基因组序列物种的增多，在越来越多的植物中发现了ACBPs。来自不同植物来源的ACBPs家族呈现出多样化的亚细胞定位和生物学功能。为了发现植物ACBPs基因家族功能在陆地植物进化过程中，尤其是在单、双子叶分离后发生的变化，总结了已报道的植物ACBPs的亚细胞定位和基因功能，并有针对性地对84种植物第四类ACBPs氨基酸序列进行多重比较和进化关系分析。单、双子叶第四类ACBP除了具有保守的功能结构域序列，还拥有各自独特的序列特征。以上序列差异为将在植物中研究第四类ACBP亚细胞定位及基因功能提供重要信息。最后提出随着单双子叶植物的分离，ACBP的功能也发生了分化。

关键词: 黄河谷地, 黄河谷地, 贵德县, 气候舒适度指数, 评价

Abstract: Acyl-coenzyme A (CoA)-binding proteins (ACBPs) are a class of lipid transporters. They have high binding abilities to acyl-CoAs and phospholipids, and in plant development and stress responses, they play important roles. According to the differences of the domain architecture and protein molecular weight, plant ACBPs are divided into four classes. With the increase of the known genome sequences of plant species, in more and more plants, ACBPs are found. ACBPs from different plant species show diversified subcellular localizations and biological functions. To find out the functional changes of plant ACBPs gene family occurred in terrestrial plant evolution, especially after the split of monocots and dicots, it was summarized that the reported subcellular localizations and gene functions of plant ACBPs. And focusing on Class IV ACBPs from 84 different plant species, the amino acid sequences were multiply aligned and phylogenetic relationship analyses were conducted. The monocots and dicots Class IV ACBPs, besides having conserved functional domain sequences, possessed their own unique sequence characteristics. The above sequence distinctions will provide valuable information for the investigation on the subcellular localizations and gene functions of Class IV ACBPs in plants. Finally, it was proposed that the functions of ACBP are diverged with the split of monocots and dicots.

徐利剑,梁晶,李泽宇,刘博洋,孟威. 植物酰基辅酶A结合蛋白的研究进展[J]. 中国农学通报, 2019, 35(30): 78-83.

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