Construction of a recombinant plasmid for S.mutants luxS gene knock-out / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6)1996.
Article
in Chinese
| WPRIM
| ID: wpr-546132
ABSTRACT
Objective:
To construct a recombination plasmid containing a kanamycin resistance gene,the upstream and downstream fragment of luxS of Streptococcus mutans so that luxS can be knock out by transforming the plasmid into S.mutans later.Methods:
Kanamycin resistance gene,the upstream and downstream of luxS were cloned respectively by using plasmid pEGFP-N1 and DNA of Streptococcus mutans as template.Then the genes were ligated into Multiple Cloning Site(MCS) of vector pMD19-T in certain order and transformed into E.coli Competent Cells.Finally transformants were selected for resistance to kanamycin and ampicillin.Results:
Kanamycin resistance gene and the upstream and downstream of luxS were successfully ligated into accurate enzyme digestion site of vector pMD19-T,and restriction digests analysis and sequencing result was correct.Conclusion:
LuxS gene knock-out of Streptococcus Mutans recombinant plasmid is constructed and built a base of constructing Streptococcus Mutans luxS mutans in the future.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Practical Stomatology
Year:
1996
Type:
Article
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