Muto A, Hori H, Sawada M, Kawauchi Y, Iwami M, Yamao F, Osawa S
Yale J Biol Med. 1983 Sep-Dec;56(5-6):373-6.
The nucleotide sequence of 5S rRNA from Mycoplasma capricolum is more similar to that of the gram-positive bacteria than that of the gram-negative bacteria. The presence of two copies of rRNA genes in M. capricolum genome has been demonstrated. The two different rRNA gene clusters have been cloned in E. coli plasmid vectors and analyzed for the rRNA gene organizations, demonstrating that the gene arrangement is in the order of 16S, 23S, and 5S rDNA. The ribosomes of M. capricolum contain about 30 species of proteins in 50S and 20 in 30S subunits. The number and size of the ribosomal proteins are not significantly different from those of other eubacterial ribosomes.
山羊支原体5S rRNA的核苷酸序列与革兰氏阳性菌的更为相似,而非革兰氏阴性菌。已证实山羊支原体基因组中存在两份rRNA基因拷贝。这两个不同的rRNA基因簇已被克隆到大肠杆菌质粒载体中,并对rRNA基因组织进行了分析,结果表明基因排列顺序为16S、23S和5S rDNA。山羊支原体的核糖体在50S亚基中含有约30种蛋白质,在30S亚基中含有20种。核糖体蛋白质的数量和大小与其他真细菌核糖体的没有显著差异。