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Constitutive Gene Expression System for Lactococcus lactis and Other Lactic Acid Bacteria

ELV01300 - Lactococcus lactis constitutive vector pNZ2122, food grade, 10µg


Starting at: $950.00

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The Constitutive Gene Expression System for Lactococcus lactis and other lactic acid bacteria, developed at NIZO Food Research, NL, is a food-grade protein expression system. This system is advantageous in that it does not contain endotoxins, inclusion bodies, spores or extracellular proteases, and can be used for bacteria other than Lactococcus lactis. With this system, fermentation, scale-up and downstream processing are simple.

The Lactococcus lactis constitutive vector pNZ2122 (mcs X-H) is a food grade vector for constitutive gene expression under control of the lacA promoter for L. lactis NZ3000. It is intended for transcriptional fusions and has lacF-based selection.

Please note this product requires a license for non-academic institutions. Please contact us for licensing information.


  • Endotoxin-free, food-grade expression system
  • Fewer endogenous and no exogenous proteases
  • No spores or inclusion bodies 
  • Simple fermentation, scale-up and downstream processing
  • Suitable for bacteria other than Lactococcus lactis


  • Overexpression of homologous and heterologous genes for functional studies and to obtain large quantities of specific gene products
  • Metabolic engineering
  • Protein secretion and anchoring in cell envelope
  • Large scale applications


  • Lactococcus lactis constitutive vector pNZ2122, mcs X-H, food-grade, 10µg