| Literature DB >> 2989776 |
L Bougueleret, M L Tenchini, J Botterman, M Zabeau.
Abstract
Strains overproducing the EcoR V endonuclease and methylase have been obtained by inserting each of the two genes in expression vectors containing the lambda PL promoter. The methylase is overproduced to a level reaching 5-10% of the total cellular proteins, which represents a 50-100 fold increase. A 30 fold overproduction of endonuclease was achieved by randomly positioning the EndRV gene downstream of the lambda PL promoter. The situation in the endonuclease overproducing clone resembles that encountered in maxi-cells. The strains described here allowed a quick purification of both enzymes in sufficient amounts for crystallisation attempts.Entities:
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Year: 1985 PMID: 2989776 PMCID: PMC341280 DOI: 10.1093/nar/13.11.3823
Source DB: PubMed Journal: Nucleic Acids Res ISSN: 0305-1048 Impact factor: 16.971