1、 Cytb D-loop ND6 ND5 12S rRNA 16S rRNA ND4 ND4L ND1 ND3 CO3 ATPase6 ND2 ATPase8 CO2 CO1 TRNA genes;Coding regions,Indicates direction of gene,5to3 CO:cytochrome oxidase;ND:NADH dehydrogenase Gig.Human mitochondrial DNA has 22 tRNA genes,2 rRNA genes,ahd 13 protein-coding regions.14 of the 15 protein
2、-coding or rRNA-coding regions are transcribed in the same direction.14 of the tRNA genes are expressed in the clockwise direction and 8 are read countr clockwise.10100 m mm 复制叉复制叉复制叉复制叉复制原点复制原点 图 12-5 E.coli RNA 聚合酶的亚基组成 编码链编码链AACTGTATATTA模板链模板链TTGACATATAAT35转录起始点转录起始点Probnow盒子盒子启动子启动子 35 10 +1转录区转录区XhoI SciI
