Description
 Nisin is a polypeptide antibiotic known as a lantibiotic.  It has been isolated from Lactococcus lactis.  Produced by gram-positive bacteria, the role of nisin is to reduce competitive strain due to the presence of other gram-positive bacteria. 
  When it comes in contact with other gram-positive bacteria, nisin creates pores in the cell membrane leading to loss of membrane permeability control.  This ultimately leads to cell lysis and death.  Nisin is not effective on gram-negative organisms, but is effective against a wide variety of gram-positive bacteria.  It has been used as a selection agent to isolate gram-negative bacteria, yeast, and molds.  It has also been used to study post-translational modification. 
  Product Specifications
 Nisin 
  MOLECULAR BIOLOGY GRADE 
  Formula: C143H230N42O37S7 
  MW: 3,354.07 g/mol 
  Storage/Handling: Store at 2-8°C. 
  PubChem Chemical ID: 16219761