Analysis of the plasmid content of three β-lactamase-producing Neisseria gonorrhoeae strains

A novel type of resistance plasmid in Haemophilus influenzae

“…The relations bet-ween pPJ301 or pPJ302 and the resistant genetic elements known to occur in H. influenzae were analyzed in the Southern hybridization experiments presented in Fig. 4: pW266 (the core plasmid related to the resistant elements larger than 45 kb) showed no homology with pPJ301 or pPJ302, whereas the gonococcal plasmid pPJ102 (12,13), used as a representative of the 7.1-kb resistance elements, appeared to share common sequences with pPJ301 and pPJ302. However, the H. influenzae bands hybridizing to the gonococcal labeled plasmid are those containing the Tn2 fragment present in pPJ102 (Fig.…”