Edvotek Transformation of E. coli with pGAL – Blue/White Gene Expression Kit

The Edvotek Transformation of E. coli with pGAL Kit provides an engaging hands‑on introduction to bacterial transformation and gene expression. In this experiment, students introduce the pGAL™ plasmid into E. coli cells, allowing them to observe a distinctive blue colour change in transformed colonies. This colour is produced by the expression of the β‑galactosidase enzyme, encoded by the fully functional lacZ gene carried on the plasmid.

Unlike other transformation systems, this kit does not require IPTG because the pGAL™ plasmid contains the complete lacZ gene, enabling direct expression once the plasmid is successfully incorporated. Designed for 10 lab groups (2–4 students per group), the kit includes everything needed to perform the transformation, plate the bacteria, and visualise results using blue/white screening.

The kit includes BactoBeads™ for preparing competent cells, plasmid DNA, X‑Gal indicator, media, buffers, ReadyPour™ agar, sterile pipettes, loops, petri dishes, microtubes, and full instructions. Required equipment includes a 37 °C incubator, water bath, and a microwave or hot plate.

Key Features

• Blue‑colour colony indication through lacZ gene expression
• No IPTG needed – pGAL™ contains fully functional lacZ
• Uses BactoBeads™ for simple preparation of competent E. coli
• Complete practical kit for 10 lab groups
• Includes: plasmid DNA, media, buffers, X‑Gal, ampicillin, agar, pipettes, loops, petri dishes, microtubes and instructions
• Reliable, classroom‑ready design from Edvotek
• Clear visual results ideal for student interpretation and analysis

You need: 37 °C incubation oven, water bath, microwave or hot plate.

Ideal for School Science Lessons & Biotechnology Teaching

This transformation kit is perfectly suited for GCSE, KS5, and A‑Level Biology courses covering genetics, molecular biology, biotechnology, and microbiology. Students gain first‑hand experience with fundamental laboratory skills while learning how genes can be manipulated and expressed in living organisms.

• Exploring genetic transformation and plasmid uptake
• Understanding gene expression and regulation
• Using blue/white screening as an indicator of successful transformation
• Practising aseptic technique and microbiological skills
• Teaching essential biotechnology methods such as plating, incubation, and colony analysis
• Linking theory to real-world applications such as genetic engineering and biopharmaceutical production

Engaging, visually clear, and designed for student success, the Transformation of E. coli with pGAL Kit makes complex genetic concepts accessible while building confidence in practical biotechnology skills.