Note : Genetic and biochemical characterization of nisin Z produced by Lactococcus lactis ssp. lactis biovar. diacetylactis UL 719

 : Genetic and biochemical characterization of nisin Z produced by Lactococcus lactis ssp. lactis biovar. diacetylactis UL 719},
  author={Jamal Meghrous and Christophe Lacroix and M Bouksa{\"i}m and Gis{\`e}le LaPointe and Ronald E. Simard},
  journal={Journal of Applied Microbiology},
The bacteriocin produced by Lactococcus lactis ssp. lactis biovar. diacetylactis UL 719 was purified and characterized. Two peaks exhibiting antimicrobial activity were obtained after purification. Primary structure of the peptide of major peak 2 was identical to that of nisin Z when determined by Edman degradation and confirmed by DNA sequence analysis. The molecular mass as determined by mass spectrometry was 3346·39 ± 0·40 Da for peak 1 and 3330·39 ± 0·27 Da for peak 2, which suggests that… 

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