Tracey BergNeville FirthSumalee ApisiridejAnusha HettiaratchiAmornrut LeelapornRonald A. SkurrayThe University of SydneyPrince of Songkla UniversityMahidol University2018-07-042018-07-041998-09-01Journal of Bacteriology. Vol.180, No.17 (1998), 4350-4359002191932-s2.0-0031783180https://repository.li.mahidol.ac.th/handle/123456789/18376The 46.4-kb nucleotide sequence of pSK41, a prototypical multiresistance plasmid from Staphylococcus aureus, has been determined, representing the first completely sequenced conjugative plasmid from a gram-positive organism. Analysis of the sequence has enabled the identification of the probable replication, maintenance, and transfer functions of the plasmid and has provided insights into the evolution of a clinically significant group of plasmids. The basis of deletions commonly associated with pSK41 family plasmids has been investigated, as has the observed insertion site specificity of Tn552-like β-lactamase transposons within them. Several of the resistance determinants carried by pSK41-like plasmids were found to be located on up to four smaller cointegrated plasmids. pSK41 and related plasmids appear to represent a consolidation of antimicrobial resistance functions, collected by a preexisting conjugative plasmid via transposon insertion and IS257-mediated cointegrative capture of other plasmids.Mahidol UniversityImmunology and MicrobiologyArticleSCOPUS