Department of Biochemistry, University of Georgia, 30602, Athens, GA, U.S.A..
Plant Mol Biol. 1987 Mar;8(2):113-31. doi: 10.1007/BF00025323.
The cDNA and/or genomic DNA sequences of 13 globulin storage proteins from flowering plants (angiosperms) are now known. They represent 8 genera, 5 families and 5 orders of plants and include one monocotyledonous species. Here, the coding nucleotide and amino acid sequences of these proteins are compared by dot matrix analysis and gross protein domains visualized by hydropathy analyses. The vestigial homologies visualized by these means indicate that all of the globulin storage proteins of flowering plants have emanated from 2 genes that existed at the beginning of angiosperm evolution.A curious polypeptide domain of 150-200 amino acids located near the N terminus is found in a globulin subgroup of 2 genera widely separated phylogenetically. The domain appears to have resulted from an ancient insertion that has been deleted in most of its descendant genes.
目前已从开花植物（被子植物）中鉴定出 13 种球蛋白贮藏蛋白的 cDNA 和/或基因组 DNA 序列。这些蛋白分别来自 8 个属、5 个科和 5 个植物目，其中包括一个单子叶植物种。在此，通过打点矩阵分析比较这些蛋白的编码核苷酸和氨基酸序列，并通过疏水性分析直观显示总蛋白结构域。这些方法显示出的残余同源性表明，所有开花植物的球蛋白贮藏蛋白都源自于被子植物进化初期存在的 2 个基因。在一个在系统发育上相距甚远的 2 个属的球蛋白亚组中发现了一个近 N 末端、由 150-200 个氨基酸组成的奇特多肽结构域。该结构域似乎是由一个古老的插入片段产生的，该插入片段在其大多数后裔基因中已被删除。
