植物酰基辅酶A结合蛋白的研究进展

The Progress of Plant Acyl-CoA-binding Proteins

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。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,本研究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。随着单双子叶植物的分离,ACBP的功能也发生了分化。

Acyl-coenzyme A(CoA)-binding proteins(ACBPs)are a class of lipid transporters.They have high binding abilities to acyl-CoAs and phospholipids,and they play important roles in plant development and stress responses.To find out the functional changes of plant ACBPs gene family occur in terrestrial plant evolution,especially after the split of monocots and dicots,we summarize the reported subcellular localizations and gene functions of plant ACBPs.And focusing on Class IV ACBPs from 84 plant species,the amino acid sequences are multiply aligned and the phylogenetic relationship analyses are conducted.The monocots and dicots Class Ⅳ ACBPs,not only have conserved functional domain sequences,but also possess their own unique sequence characteristics.The above sequence distinctions will provide valuable information for studying the subcellular localizations and gene functions of Class Ⅳ ACBPs in plants.The functions of ACBP are diverged with the split of monocots and dicots.