EVOLUTION OF LINEAR PLASMIDS

被引:60
作者
KEMPKEN, F [1 ]
HERMANNS, J [1 ]
OSIEWACZ, HD [1 ]
机构
[1] DEUTSCH KREBSFORSCHUNGSZENTRUM PROJEKTGRP MOLEK BI, W-6900 HEIDELBERG, GERMANY
关键词
LINEAR PLASMIDS; PHYLOGENETIC TREES; DNA POLYMERASE; RNA POLYMERASE;
D O I
10.1007/BF00160211
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Linear plasmids are genetic elements commonly found in yeast, filamentous fungi, and higher plants. In contrast to all other plasmids they possess terminal inverted repeats and terminal bound proteins and encode their own DNA and RNA polymerases. Here we present alignments of conserved amino acid sequences of both the DNA and RNA polymerases encoded by those linear plasmids for which DNA sequence data are available. Additionally these sequences are compared to a number of polymerases encoded by related viral and cellular entities. Phylogenetic trees have been established for both types of polymerases. These trees appear to exhibit very similar subgroupings, proving the accuracy of the method employed.
引用
收藏
页码:502 / 513
页数:12
相关论文
共 55 条