Ison C A, Bellinger C M, Glynn A A
J Clin Pathol. 1984 Oct;37(10):1123-8. doi: 10.1136/jcp.37.10.1123.
Plasmids 1.6, 2.8, or greater than 40 megadaltons in size were found in one urethral and nine throat strains of meningococci. Throat meningococci are known to be heterogeneous in their aminopeptidase profiles. Their unexpected content of plasmids is further evidence of their difference from classic systemic strains. Although the 2.8 megadalton plasmid has some resemblance to the well known 2.6 megadalton gonococcal plasmid, restriction enzyme studies gave no evidence of identity. Possible sources of the plasmids are discussed.
在一株尿道脑膜炎双球菌菌株和九株咽喉部脑膜炎双球菌菌株中发现了大小为1.6、2.8或大于40兆道尔顿的质粒。已知咽喉部脑膜炎双球菌的氨肽酶谱具有异质性。它们意外含有质粒进一步证明了它们与典型的全身性菌株不同。尽管2.8兆道尔顿的质粒与著名的2.6兆道尔顿淋球菌质粒有些相似，但限制性内切酶研究并未提供两者相同的证据。文中讨论了质粒可能的来源。
