Summary
Brevibacterium methylicum is a newly isolated Gram-positive facultatively methylotrophic bacterium that uses the NAD+-dependent methanol dehydrogenase for methanol oxidation and assimilates its carbon via the ribulose monophosphate cycle. Protoplasts prepared by lysozyme treatment of B. methylicum cells grown in the presence of glycine were transformed by plasmid shuttle vectors pCEM500 (16.5 kb; Smr/Spr, Kmr/Gmr) and pEC71 (7.1 kb; Kmr/Nmr) constructed on the basis of B. lactofermentum plasmid pAM330 and replicating in Escherichia coli and in amino-acid-producing coryneform bacteria. The resistance markers were found to be expressed in B. methylicum and autonomous plasmid DNAs of various size were isolated from the transformants. The presence of the pAM330 replicon in these plasmids was demonstrated by DNA-DNA hybridization experiments.
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Nešvera, J., Pátek, M., Hochmannová, J. et al. Transformation of a new Gram-positive methylotroph, Brevibacterium methylicum, by plasmid DNA. Appl Microbiol Biotechnol 35, 777–780 (1991). https://doi.org/10.1007/BF00169894
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DOI: https://doi.org/10.1007/BF00169894