Intact Genomics LBA4404 ElectroComp Agrobacterium cells are optimized for the highest transformation efficiencies which is ideal for applications requiring high transformation efficiencies, such as with cDNA or gDNA library construction. The LBA4404 strain is useful for transgenic operations of tomatoes, tobacco and other plants. LBA4404 contains a rifampicin resistance gene (rif) and also has streptomycin resistance. LBA4404 strain also contains a octoprine-type Ti plasmid pAL4404 without self-transport function, which contains the vir gene.
Product Includes:
• LBA4404 Electrocompetent cells
• pCAMBIA control DNA
• Recovery medium
Calculation of Transformation Efficiency
Transformation Efficiency (TE) is defined as the number of colony forming units (cfu) produced by transforming 1µg of plasmid into a given volume of competent cells.
TE = Colonies/µg/Plated
Transform 1 µl of (500 pg/µl) pCAMBIA1391z control plasmid into 25 µl of cells, add 974 µl of Recovery Medium. Recover for 3 hours and plate 100 µl. Count the colonies on the plate in two days. If you count 500 colonies, the TE is calculated as follows:
Colonies = 500
µg of DNA = 0.0005
Dilution = 100/1000 = 0.1
TE = 500/.0005/.1 = 1×1071285-12 1285-36