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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Characterization of the gene encoding the beta-lactamase of the psychrophilic marine bacterium Moritella marina strain MP-1.

The beta-lactamase gene (mbla) of the psychrophilic marine bacterium Moritella marina strain MP-1 was identified in a previously isolated genomic DNA fragment and it was expressed in Escherichia coli cells. The mbla gene encoded a protein consisting of 287 amino acid residues. Its predicted amino acid sequence showed approximately 50% identity with that of a number of class A beta-lactamases, especially with that of CARB/ PSE type of beta-lactamases (carbenicillinases). E. coli transformed with the plasmid containing mbla grew on an ampicillin-containing plate at 37 degrees C but not at 42 degrees C, suggesting that the beta-lactamase of this bacterium is heat-labile.[1]

References

  1. Characterization of the gene encoding the beta-lactamase of the psychrophilic marine bacterium Moritella marina strain MP-1. Tanaka, M., Okuyama, H., Morita, N. Biosci. Biotechnol. Biochem. (2001) [Pubmed]
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