Comparative Study
doi: 10.1128/jb.164.2.932-937.1985.
Common evolutionary origin of the phage T4 dam and host Escherichia coli dam DNA-adenine methyltransferase genes
- PMID: 3902803
- PMCID: PMC214344
- DOI: 10.1128/jb.164.2.932-937.1985
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Comparative Study
Common evolutionary origin of the phage T4 dam and host Escherichia coli dam DNA-adenine methyltransferase genes
J Bacteriol.
1985 Nov.
Abstract
We compared the known DNA nucleotide and encoded amino acid sequences of the Escherichia coli and bacteriophage T4 dam (DNA-adenine methyltransferase) genes. Despite the absence of any DNA sequence homology, there were four regions (11 to 33 residues long) of amino acid sequence homology containing 45 to 64% identity. These results suggest that the genes for these two enzymes have a common evolutionary origin.
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