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Does the GFP sequence in your pmaxGFP control plasmid have a stop codon?

Yes. The coding sequence ends with a stop codon (TGA/UGA).

What kind of buffer do you recommend for resuspending my siRNA?

Please use the buffer that is recommended by your siRNA manufacturer.

What antibodies can be used against the GFP produced by pmaxGFP and pmaxFP-Green vectors? What antibodies can be used to detect denatured GFP? What antibodies can be used to detect the RFP expressed by pmaxFP-Red?

Most of the commercial antibodies for GFP do not detect GFP expressed from pmaxGFP or pmaxFP-Green vectors. The origin of the protein expressed by the pmaxGFP control plasmid and pmaxFP-Green is from the green fluorescent protein CopGFP, cloned from...

What stock concentration of Propidium Iodide does Lonza use for FACS analysis?

We use a stock concentration of 100 µg/ml in PBS. This is diluted 1:300 – 1:400 into the sample.

What is the shelf life of the 96-well Shuttle kits?

The shelf life of the 96-well Shuttle™ Kits is 24 months from date of manufacturing. We guarantee a remaining shelf life of at least 6 months after sending them out of the warehouse.

Component B in my Mouse T cell kit became solid at 4°C . Is this normal?

Yes, it is normal for component B to become solid at 4°C. The crystals dissolve at room temperature and functionality of component B is not affected.

Do you have any siRNA Nucleofection results using concentrations lower than 50nM?

Yes. Please click on the attached Technical Reference Guide: "Designing an RNAi Experiment Using Nucleofection™". On page 3 you can find a table with some examples.

The animal facility which isolates my hepatocytes is at a different location, should I be concerned about transport time?

Isolated hepatocytes can be transported in Krebs-Henseleit Buffer or supplemented William's E Medium. Long transport time for isolated hepatocytes, (in excess of one hour) can cause a decrease in efficiency of Nucleofection™, but does not seem to...

How much DNA can I use when transfecting hepatocytes with the standard Nucleofector?

We have used up to 6 µg of DNA per 100 µl reaction with no deleterious effect.