一段烟草叶绿体DNA序列，可能编码一种类似于大肠杆菌RNA聚合酶β亚基的多肽。
A tobacco chloroplast DNA sequence possibly coding for a polypeptide similar to E. coli RNA polymerase beta-subunit.
作者信息
Ohme M, Tanaka M, Chunwongse J, Shinozaki K, Sugiura M
出版信息
FEBS Lett. 1986 May 5;200(1):87-90. doi: 10.1016/0014-5793(86)80516-6.
PMID:3516726
Abstract
DNA sequencing has revealed a long open reading frame (ORF) in the large single-copy region of tobacco chloroplast DNA. This ORF consists of 1070 codons and its deduced amino acid sequence shows about 39% homology to that of the beta-subunit of E. coli RNA polymerase. This finding raises a possibility that some of the chloroplast RNA polymerase subunits are coded for by the chloroplast genome.
摘要
DNA测序揭示了烟草叶绿体DNA大单拷贝区域中的一个长开放阅读框（ORF）。这个ORF由1070个密码子组成，其推导的氨基酸序列与大肠杆菌RNA聚合酶β亚基的序列显示出约39%的同源性。这一发现增加了叶绿体RNA聚合酶的一些亚基由叶绿体基因组编码的可能性。
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