Pedersen Dorthe S, Grasser Klaus D
Cell Biology & Plant Biochemistry, Regensburg University, Universitätsstr. 31, D-93053 Regensburg, Germany.
Biochim Biophys Acta. 2010 Jan-Feb;1799(1-2):171-4. doi: 10.1016/j.bbagrm.2009.11.004.
Proteins belonging to the chromosomal HMGA and HMGB families have been identified in a broad range of plant species. In this article, we describe the family of HMGB proteins, which, in plants, are more diversified than in other eukaryotes. There are differences between various plant HMGB proteins regarding several properties including expression pattern, DNA- and chromatin-interactions, posttranslational modifications, subcellular localisation, and interaction with other proteins, suggesting that plants have a broad repertoire of these architectural chromosomal proteins. Recent results in the Arabidopsis model system indicate that the HMGB proteins have (partially) specialised functions and are required for proper development. In addition, they are involved in plant tolerance to different stress conditions.
在多种植物物种中已鉴定出属于染色体HMGA和HMGB家族的蛋白质。在本文中，我们描述了HMGB蛋白质家族，在植物中，该家族比其他真核生物中的更为多样化。各种植物HMGB蛋白质在包括表达模式、DNA和染色质相互作用、翻译后修饰、亚细胞定位以及与其他蛋白质相互作用等几个特性方面存在差异，这表明植物拥有丰富多样的这些染色体结构蛋白。拟南芥模型系统中的最新结果表明，HMGB蛋白质具有（部分）特定功能，是正常发育所必需的。此外，它们还参与植物对不同胁迫条件的耐受性。
