期刊
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
卷 44, 期 7, 页码 1970-1973出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/AAC.44.7.1970-1973.2000
关键词
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A new CTX-M-type beta-lactamase (CTX-M-9) has been cloned from a clinical cefotaxime-resistant Escherichia coli strain. Despite the close identity that exists between the CTX-M-9 and Toho-2 beta-lactamases (88%), the 35 amino acids located between residues Ala-185 and Ala-219 are totally different in both enzymes. Outside of this region there are only six amino acids substitutions between both proteins.
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