TY - JOUR
T1 - Use of Southern Hybridization to Detect the Haemophilus Influenzae β-lactamase Gene
AU - Lin, Hsiu-Chen
AU - Wang, Chih Chien
AU - Yu, Cheing Mei
AU - Chu, Mong Ling
PY - 1997/6
Y1 - 1997/6
N2 - The most common cause of ampicillin resistance in Haemophilus influenzae is due to the production of β-lactamase. In most strains, the β-lactamase produced is TEM-1. Since 1981, ROB-1 β-lactamase appears to be responsible for ampicillin resistance in H. influenzae and several animal pathogens. Forty-five ampicillin-resistant, β-lactamase-producing clinical isolates of Haemophilus influenzae were collected. We used Southern hybridization to determine whether they produced TEM-1 or ROB-1 β-lactamase. Plasmids were obtained from a ROB-1-producing strain of H. influenzae, and a plasmid (pBR322) known to encode TEM-1. Both β-lactamase genes were labeled with non-isotope digoxigenin as probes, and then hybridized on with PCR amplified β-lactamase gene product from H. influenzae strains. The results revealed that β-lactamase-mediated ampicillin resistance type in H. influenzae could be detected by the Southern hybridization method.
AB - The most common cause of ampicillin resistance in Haemophilus influenzae is due to the production of β-lactamase. In most strains, the β-lactamase produced is TEM-1. Since 1981, ROB-1 β-lactamase appears to be responsible for ampicillin resistance in H. influenzae and several animal pathogens. Forty-five ampicillin-resistant, β-lactamase-producing clinical isolates of Haemophilus influenzae were collected. We used Southern hybridization to determine whether they produced TEM-1 or ROB-1 β-lactamase. Plasmids were obtained from a ROB-1-producing strain of H. influenzae, and a plasmid (pBR322) known to encode TEM-1. Both β-lactamase genes were labeled with non-isotope digoxigenin as probes, and then hybridized on with PCR amplified β-lactamase gene product from H. influenzae strains. The results revealed that β-lactamase-mediated ampicillin resistance type in H. influenzae could be detected by the Southern hybridization method.
KW - Southern hybridization
KW - β-lactamase
KW - Haemophilus influenzae
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M3 - Article
SN - 1013-9648
VL - 8
SP - 16
EP - 20
JO - 中華民國感染症醫學會雜誌
JF - 中華民國感染症醫學會雜誌
IS - 1
ER -