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Is it more difficult to detect DsRed by FACS than GFP?

Yes, DsRed is much less bright than GFP and is more difficult to detect by FACS and microscopy because it bleaches quickly.

Can I use the pmaxGFP™ control plasmid with insect cells such as S2 cells or SF9 cells?

The pmaxGFP™ Vector provided in our Nucleofector™ Kits is not expressed in insect cells. We strongly recommend an insect expression vector encoding a fluorescent protein or lacZ reporter as a positive control for your experiments [e.g. Novagen™’s...

Do you have any information regarding differentiation of mouse ES cells after Nucleofection™ with large plasmids?

It is unlikely that plasmid size would affect in vitro differentiation capability. Gene targeting constructs are often as large as 20 kb and if treated well the ES cells are perfectly capable of generating germ line chimaeras afterwards (indicating...

Does the Mouse T cell protocol work for stimulated mouse T cells?

Yes. Stimulate the cells with anti CD3 and anti CD28 antibody for 24 hours. Use the optimized protocol. Often times, this will result in higher transfection efficiency (60-70% is possible). Alternatively, you can stimulate with ConA and IL-2 for 2-3...

Can I apply more than one program (transfection condition) per plate with the 96-well Shuttle™ System?

With the 96-well Shuttle™ Device, it is possible to apply up to 96 different programs (transfection conditions) per 96-well Nucleocuvette™ Plate. Therefore, optimization of Nucleofection™ Conditions for a particular cell line can be easily performed...

What cell number do I need per well when using the 96-well Shuttle™ Device or the 4D-Nucleocuvette™ Stripes?

The cell number is very much dependent on the cell type you use. For high throughput Nucleofection™, we usually start with one fifth of the optimal amount recommended for the standard Nucleofection™ in the 100µl cuvette. Currently the absolute cell...

What is the amount of DNA needed per well when using the 96-well Shuttle™ Device?

The amount depends on the cell type and on the DNA construct. As a rule of thumb 400 ng of DNA per well should be applied. However, for some cells or constructs even 100 ng may be sufficient.

Do you have a protocol for the Nucleofection™ of Plasmodium berghei?

Yes. You can use our new Basic Parasite Nucleofector™ Starter kit for parasitic protozoa. The Basic Parasite Nucleofector Starter Kit (Cat.No. VMI-1001) should help you to determine the optimal program and Nucleofector™ Solution for your...

Do you have a protocol for the Nucleofection™ of Plasmodium yoelii?

Yes. You can use our new Basic Parasite Nucleofector™ Starter kit for parasitic protozoa. The Basic Parasite Nucleofector Starter Kit (Cat.No. VMI-1001) should help you to determine the optimal program and Nucleofector Solution for your...

What is the amount of siRNA needed per Nucleofection™ Reaction?

When performing siRNA-mediated knockdown experiments it is advisable to conduct a dose-response (concentration) analysis to determine the minimum siRNA concentration necessary for sufficient target knockdown on the mRNA, protein, or functional...
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