| Literature DB >> 11160114 |
Abstract
A Thermus thermophilus HB27 strain was constructed in which the malate dehydrogenase (mdh) gene was deleted. The Deltamdh colonies are recognized by a small-colony phenotype. Wild-type phenotype is restored by transformation with Thermus plasmids or integration vector containing an intact mdh gene. The wild-type phenotype provides a positive selection tool for the introduction of plasmid DNA into Thermus spp., and because mdh levels can be readily quantified, this host-vector system is a convenient tool for monitoring gene expression.Entities:
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Year: 2001 PMID: 11160114 PMCID: PMC95068 DOI: 10.1128/JB.183.5.1792-1795.2001
Source DB: PubMed Journal: J Bacteriol ISSN: 0021-9193 Impact factor: 3.490