| Literature DB >> 1840584 |
G Lauer1, E A Rudd, D L McKay, A Ally, D Ally, K C Backman.
Abstract
We have cloned and sequenced the gene for DNA ligase from Thermus thermophilus. A comparison of this sequence and those of other ligases reveals significant homology only with that of Escherichia coli. The overall amino acid composition of the thermophilic ligase and the pattern of amino acid substitutions between the two proteins are consistent with compositional biases in other thermophilic enzymes. We have engineered the expression of the T. thermophilus gene in Escherichia coli, and we show that E. coli proteins may be substantially removed from the thermostable ligase by a simple heat precipitation step.Entities:
Mesh:
Substances:
Year: 1991 PMID: 1840584 PMCID: PMC208194 DOI: 10.1128/jb.173.16.5047-5053.1991
Source DB: PubMed Journal: J Bacteriol ISSN: 0021-9193 Impact factor: 3.490