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Article

Tn4351-generated non-haemolytic and/or non-pigmented mutants of Porphyromonas gingivalis.

Microbios - 1 Jan 1998

Takada K, Hirasawa M

Abstract excerpt

Escherichia coli-Porphyromonas gingivalis plasmid-shuttle vectors R751::* omega 4, pVOH1, and pVAL-1 were used for isolation of non-pigmented, defective protease, or non-haemolytic activity phenotypes in P. gingivalis. Transfer frequencies for R751::* omega 4, pVOH1, and pVAL-1 varied from 1.7 x 10(-9) to 5.3 x 10(-11) depending on the P. gingivalis 381 and ATCC 33277 strains. Two erythromycin-resistant...

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PMID: 9881462

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