A Type III restriction-modification system in Mycoplasma mycoides subsp. capri.
LARTIGUE, Carole
Biologie du fruit et pathologie [BFP]
J. Craig Venter Institute [La Jolla, USA] [JCVI]
< Réduire
Biologie du fruit et pathologie [BFP]
J. Craig Venter Institute [La Jolla, USA] [JCVI]
Langue
en
Article de revue
Ce document a été publié dans
Open Biology. 2012, vol. 2, n° 10, p. 1-8
Royal Society
Résumé en anglais
The sequenced genome of Mycoplasma mycoides subsp. capri revealed the presence of a Type III restriction-modification system (MmyCI). The methyltransferase (modification) subunit of MmyCI (M. MmyCI) was shown to recognize ...Lire la suite >
The sequenced genome of Mycoplasma mycoides subsp. capri revealed the presence of a Type III restriction-modification system (MmyCI). The methyltransferase (modification) subunit of MmyCI (M. MmyCI) was shown to recognize the sequence 5'-TGAG-3' and methylate the adenine. The coding region of the methyltransferase gene contains 12 consecutive AG dinucleotide repeats that result in a translational termination at a TAA codon immediately beyond the repeat region. This strain does not have MmyCI activity. A clone was found with 10 AG repeats such that the gene is in frame, and this strain has MmyCI activity, suggesting that the expression of the MmyCI methyltransferase may be phase variable.< Réduire
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