Grabau E, Havlik M, Gesteland R
Howard Hughes Medical Institute, University of Utah, Salt Lake City 84132.
Curr Genet. 1988;13(1):83-9. doi: 10.1007/BF00365761.
There are two copies of the ATPase subunit 6 (atp6) gene in the soybean mitochondrial genome which differ in their gene organization but share extensive homology with the maize atp6 gene except at their 5' ends. The two soybean genes are chimeric, containing regions with homology to other known mitochondrial genes at their 5' ends. Sequences homologous to the cytochrome oxidase subunit II (coxII) are located in one copy and sequences homologous to the ATPase subunit 9 (atp9) gene are located in the other copy, both of which contain methionine (ATG) codons that are in-frame with the remainder of the atp6 open reading frame. At least the copy of atp6 that contains the coxII sequence at its 5' end is abundantly transcribed to give an RNA of approximately 1,200 nucleotides.
大豆线粒体基因组中有两个ATP酶亚基6(atp6)基因拷贝,它们的基因结构不同,但除了5'端外,与玉米atp6基因有广泛的同源性。这两个大豆基因是嵌合的,在其5'端含有与其他已知线粒体基因同源的区域。与细胞色素氧化酶亚基II(coxII)同源的序列位于一个拷贝中,与ATP酶亚基9(atp9)基因同源的序列位于另一个拷贝中,这两个拷贝都含有与atp6开放阅读框其余部分读框一致的甲硫氨酸(ATG)密码子。至少5'端含有coxII序列的atp6拷贝被大量转录,产生一个约1200个核苷酸的RNA。