Dunny G M, Birch N, Hascall G, Clewell D B
J Bacteriol. 1973 Jun;114(3):1362-4. doi: 10.1128/jb.114.3.1362-1364.1973.
A small plasmid with a molecular weight of approximately 3.0 x 10(6) and present to the extent of about 16 copies per chromosomal genome equivalent was isolated from Streptococcus mutans strain LM-7.
从变形链球菌LM-7菌株中分离出一种小质粒,其分子量约为3.0×10⁶,每个染色体基因组当量中约有16个拷贝。