Identification of active efflux system gene qacA/B in methicillin-resistant Staphylococcus aureus and its significance / 中南大学学报(医学版)
Journal of Central South University(Medical Sciences)
;
(12): 537-542, 2009.
Article
in Chinese
| WPRIM
| ID: wpr-814290
ABSTRACT
OBJECTIVE@#To detect the active efflux gene qac gene in methicillin-resistant Staphylococcus aureus (MRSA) by hem-nested polymerase chain reaction (PCR) and to learn the carrier condition of qac gene.@*METHODS@#The active efflux gene qacA/B and qacB of 80 strains MRSA isolated from clinical specimens from Aug 2006 to March 2008 were amplified in vitro by hem-nested PCR with the primers designed by computers based on qac information of Genbank, and the PCR fragments were sequenced and analyzed.@*RESULTS@#We detected qacA/B in 19 out of the 80 MRSA strains (23.75%) and qacB in 18 out of the 80 MRSA strains (22.5%). Compared with sequences of qacA (NO.X56628) and qacB(NO.AF535087) in the Genbank, 98% and 97% were identical, respectively.@*CONCLUSION@#The active efflux gene qac gene in MRSA is detected by hem-nested PCR. The proportion of qac gene positive strains is high in clinical practice, which is related to its multi-antibiotic resistance.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Membrane Transport Proteins
/
Bacterial Proteins
/
Molecular Sequence Data
/
Base Sequence
/
Polymerase Chain Reaction
/
Drug Resistance, Multiple
/
Methicillin-Resistant Staphylococcus aureus
/
Genetics
/
Methods
Type of study:
Diagnostic study
Language:
Chinese
Journal:
Journal of Central South University(Medical Sciences)
Year:
2009
Type:
Article
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