So M, Crosa J H, Falkow S
J Bacteriol. 1975 Jan;121(1):234-8. doi: 10.1128/jb.121.1.234-238.1975.
Deoxyribonucleic acid-deoxyribonucleic acid hybridization studies reveal that the plasmids coding for the production of heat stable and heat labile enteroxtoxins of Escherichia coli, regardless of their origin, have a majority of their polynucleotide sequences in common, but are not related in any significant way to those plasmids coding for the synthesis of only ST toxin. The heat stable and heat labile plasmids also share a significant degree of their polynucleotide sequences with plasmids of the FI and FII incompatibility groups, but not with R factors belonging to the I, N, W, P, or X incompatibility groups.
脱氧核糖核酸-脱氧核糖核酸杂交研究表明,编码大肠杆菌热稳定和热不稳定肠毒素产生的质粒,无论其来源如何,其大多数多核苷酸序列是相同的,但与仅编码ST毒素合成的那些质粒没有任何显著关联。热稳定和热不稳定质粒在其多核苷酸序列上也与FI和FII不相容群的质粒有很大程度的共享,但与属于I、N、W、P或X不相容群的R因子没有共享。