Expression of the thymidylate synthetase gene of the Bacillus subtilis bacteriophage Phi-3-T in Escherichia coli.

Abstract
The thymidylate synthetase gene of B. subtilis bacteriophage .vphi.-3-T, when cloned in plasmids pSC101 or pMB9, is expressed in E. coli. The promoter of the cloned gene is likely to originate in .vphi.-3-T. Rearrangements of hybrid plasmid sequences during the cloning were noted. B. subtilis strains can be transformed with hybrid DNAs. The transformants contain sequences of .vphi.-3-T, but not those of plasmid vectors.