The gene (lacA) encoding galactoside acetyltransferase fromLactococcus lactis |
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Authors: | Hugh G Griffin Michael J Gasson |
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Institution: | (1) Institute of Food Research, Norwich Research Park, Colney, NR4 7UA Norwich, UK |
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Abstract: | Summary This paper reports the cloning and characterization of a gene encoding galactoside acetyltransferase from a strain ofLactococcus lactis. AP stI library ofL. lactis strain ATCC7962 DNA was constructed in plasmid pUC18. A clone harbouring a 10 kbp DNA fragment containing part of thelac operon was isolated using a labelled probe generated by PCR. DNA sequence analysis revealed the presence of a gene encoding a protein with 64.5% similarity to the galactoside acetyltransferase fromEscherichia coli. The codon usage pattern of this gene was not typical of lactococcal genes. The lactococcallac operon organization appears to be different to that of other organisms. |
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