FOOD SCIENCE ›› 0, Vol. ›› Issue (): 180-182.

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Purification and Homology Analysis of Enterococcin SAU-2

,Liu Shu-liang   

  • Received:2011-12-06 Revised:2012-06-13 Online:2012-07-15 Published:2012-07-27
  • Contact: Liu Shu-liang E-mail:lsliang999@163.com

Abstract: Enterococcin SAU-2 was partially purified by 90% ammonium sulfate precipitation followed by SP Sepharose Fast Flow chromatography. After the purification of enterococcin, a 10.79-fold enhancement in specific activity and a recovery rate of 17.27% were achieved. The estimated molecular weight of enterococcin SAU-2 was approximately 4350 D based on Tricine-SDS-PAGE. The structural gene and amino acid sequences of the enterococcin SAU-2 had low homology with those of most enterococcins. The enterococcin SAU-2 was identified as a new member of the bacteriocin family.

Key words: enterococcin, purification, homology analysis

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