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VWR Life Science AMRESCO Induction Reagents

Supplier: VWR

A colorimetric screening system, based on the expression of the lac operon’s ?-galactosidase coding gene lacZ, is widely used in the selection of bacterial transformants.

  • Colormetric screening system
  • Used in the selection of bacterial transformants
  • Functional lacZ genes are expressed
A colorimetric screening system, based on the expression of the lac operon’s β-galactosidase coding gene lacZ, is widely used in the selection of bacterial transformants. Colonies which harbor recombinant plasmids appear white due to the disruption of the lacZ gene. Blue colonies arise from transformants harboring the original plasmid so that a functional lacZ gene is expressed. AMRESCO offers the lac operon inducer IPTG as a dioxane-free powder or as a 20 mg/ml solution. X-gal, offered as a powder, forms an intense blue precipitate in the presence of β-galactosidase. Additionally, AMRESCO offers a ready-to-use IPTG/X-Gal solution in a convenient dropper bottle.


 

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Description Size Application Supplier No. Catalog Number Unit List Price Quantity
IPTG 1 g 0487-1G 0487.1G Each Retrieving Restricted
IPTG 10 g 0487-10G 0487.10G Each Retrieving Restricted
IPTG 100 g 0487-100G 0487.100G Each Retrieving Restricted
IPTG 20 MG/ML 1 mL E708-1ML E708.1ML Each Retrieving Restricted
X-GAL 100 mg 0428-100MG 0428.100MG Each Retrieving Restricted
X-GAL 1 g 0428-1G 0428.1G Each Retrieving Restricted
X-GAL-IPTG READY SOLUTION 1.5 mL N714-1.5ML N714.1.5ML Each Retrieving Restricted
X-GAL-IPTG READY SOLUTION 10 mL Convenient dropper bottle format N714-10ML N714.10ML Each Retrieving Restricted
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