Electrophoresis modules

The Lambda protocol
Nature’s dice
Plant evolution PCR
Protein power!

Electrophoresis resources

Base unit
36 V mains transformer
Microcentrifuge
Micropipettes
Spare parts

Other DNA items

The Transformer protocol
DNA pendant kit
Double helix badge

DOWNLOADABLE PDFs

NCBE Price list
DNA safety advice (UK)

Instructions

Teacher’s guide
Student’s guide

PRESENTATIONS

PowerPoint presentation
Keynote presentation

 

This practical investigation has become a classic for demonstrating the action of different restriction enzymes on DNA. The original practical on which this is based was devised by Greg Freyer and published by Cold Spring Harbor’s Dolan DNA Learning Center.

ABOUT THIS MODULE

The bacteriophage lambda has double-stranded DNA which is 48 502 base-pairs in length. Different restriction enzymes ‘recognise’ specific sequences of bases in this DNA and cut it at precise locations.

Three different restriction enzymes are provided in this module: BamHI, HindIII and EcoRI. These enzymes take their rather strange names from the initial letters of the names of the bacteria that roduce them.

After treatment with the individual enzymes, the lambda DNA fragments are separated by size using gel electrophoresis. Once the gel has been ‘run’, the DNA is stained to reveal distinctive patterns of bands which correspond to fragments of different sizes.

MODULE CONTENTS

The module contains materials for two complete ‘runs’ of the lambda protocol, each with eight students or working groups.

• 2 foam floaters
• 8 sheets of carbon fibre electrode material, each 10 cm x 10 cm
• 300 white pipette tips, graduated at 2 and 10 µL
• 8 x 1.5 mL bromophenol blue loading dye
• 16 empty tubes + caps (yellow)
• 16 tubes of dried lambda DNA + caps
• 16 tubes of dried EcoRI restriction enzyme (red)
• 16 tubes of dried BamHI restriction enzyme (blue)
• 16 tubes of dried HindIII restriction enzyme (green)
• 50 mL TBE buffer (10x concentrate)
• 50 mL Azure A stain for DNA (2x concentrate)
• 2 g DNA electrophoresis-grade agarose
• 8 copies of the 8-page Student’s guide (full colour)
• 1 Teacher's guide

YOU WILL ALSO NEED

• A Base Unit, with electrophoresis tanks, combs and microsyringes
• A 36 V mains transformer

REPLACEMENT ITEMS

For a full list of replacement items, including Students’ booklets, please refer to the Spare parts web page.

Please note that once you have a Base Unit, the most cost-effective option is probably to buy the Lambda DNA module rather than individual replacement items.

LAMBDA PROTOCOL MODULE

Lambda protocol module .....£105.00 (GBP)

ORDERING

All of the prices on this page are in GBP and do not include Value Added Tax (VAT). This tax applies within the European Union only. Postage and handling must also be paid on orders from outside the United Kingdom. Details of how to order are given on the price list and on the Ordering web page.

Please note: For legal reasons, we cannot accept orders by eMail.